Bug 1561435 - Format toolkit/actors, a=automatic-formatting

# ignore-this-changeset

Differential Revision: https://phabricator.services.mozilla.com/D36050

--HG--
extra : source : 2540803fff7587f65dd5d6253b6fb544647e5e20

.eslintrc.js

@@ -45,7 +45,6 @@ module.exports = {
   "overrides": [{
       "files": [
         "devtools/**",
-        "toolkit/**",
         "tools/**",
         "uriloader/**",
         "view/**",

.prettierignore

@@ -40,7 +40,6 @@ toolkit/components/telemetry/datareporting-prefs.js
 toolkit/components/telemetry/healthreport-prefs.js
 
 # Ignore all top-level directories for now.
-toolkit/**
 tools/**
 uriloader/**
 view/**

toolkit/actors/AudioPlaybackChild.jsm

@@ -6,7 +6,9 @@
 
 var EXPORTED_SYMBOLS = ["AudioPlaybackChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
+  "resource://gre/modules/ActorChild.jsm"
+);
 
 class AudioPlaybackChild extends ActorChild {
   handleMediaControlMessage(msg) {
@@ -49,14 +51,14 @@ class AudioPlaybackChild extends ActorChild {
         } else if (data === "activeMediaBlockStop") {
           name += "ActiveMediaBlockStop";
         } else {
-          name += (data === "active") ? "Start" : "Stop";
+          name += data === "active" ? "Start" : "Stop";
         }
         this.mm.sendAsyncMessage(name);
       }
     }
   }
 
-  receiveMessage({name, data}) {
+  receiveMessage({ name, data }) {
     switch (name) {
       case "AudioPlayback":
         this.handleMediaControlMessage(data.type);

toolkit/actors/AutoplayParent.jsm

@@ -1,7 +1,7 @@
 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
 var EXPORTED_SYMBOLS = ["AutoplayParent"];

toolkit/actors/BrowserElementChild.jsm

@@ -8,8 +8,10 @@ var EXPORTED_SYMBOLS = ["BrowserElementChild"];
 
 class BrowserElementChild extends JSWindowActorChild {
   handleEvent(event) {
-    if (event.type == "DOMWindowClose" &&
+    if (
-        !this.manager.browsingContext.parent) {
+      event.type == "DOMWindowClose" &&
+      !this.manager.browsingContext.parent
+    ) {
       this.sendAsyncMessage("DOMWindowClose", {});
     }
   }
@@ -24,7 +26,9 @@ class BrowserElementChild extends JSWindowActorChild {
 
         let permitUnload = true;
         if (docShell && docShell.contentViewer) {
-          permitUnload = docShell.contentViewer.permitUnload(message.data.flags);
+          permitUnload = docShell.contentViewer.permitUnload(
+            message.data.flags
+          );
         }
 
         this.sendAsyncMessage("Done", { permitUnload });

toolkit/actors/BrowserElementParent.jsm

@@ -6,12 +6,20 @@
 
 var EXPORTED_SYMBOLS = ["BrowserElementParent", "PermitUnloader"];
 
-ChromeUtils.defineModuleGetter(this, "Services",
+ChromeUtils.defineModuleGetter(
-  "resource://gre/modules/Services.jsm");
+  this,
+  "Services",
+  "resource://gre/modules/Services.jsm"
+);
 
-let {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+let { XPCOMUtils } = ChromeUtils.import(
-XPCOMUtils.defineLazyPreferenceGetter(this, "unloadTimeoutMs",
+  "resource://gre/modules/XPCOMUtils.jsm"
-  "dom.beforeunload_timeout_ms");
+);
+XPCOMUtils.defineLazyPreferenceGetter(
+  this,
+  "unloadTimeoutMs",
+  "dom.beforeunload_timeout_ms"
+);
 
 // Out-of-process subframes might be in the following states following a request
 // to permit closing:
@@ -74,9 +82,11 @@ class BrowserElementParent extends JSWindowActorParent {
           // If this is a non-remote browser, the DOMWindowClose event will bubble
           // up naturally, and doesn't need to be re-dispatched.
           if (browser.isRemoteBrowser) {
-            browser.dispatchEvent(new win.CustomEvent("DOMWindowClose", {
+            browser.dispatchEvent(
+              new win.CustomEvent("DOMWindowClose", {
                 bubbles: true,
-            }));
+              })
+            );
           }
         }
         break;
@@ -203,9 +213,13 @@ var PermitUnloader = {
         actor.sendPermitUnload(flags);
       }
 
-      timer.initWithCallback(() => {
+      timer.initWithCallback(
+        () => {
           this._onTimeout(frameLoader);
-      }, unloadTimeoutMs, timer.TYPE_ONE_SHOT);
+        },
+        unloadTimeoutMs,
+        timer.TYPE_ONE_SHOT
+      );
 
       Services.tm.spinEventLoopUntilOrShutdown(() => {
         return this._finishedPermitUnload(frameStates);

toolkit/actors/ControllersChild.jsm

@@ -6,14 +6,17 @@
 
 var EXPORTED_SYMBOLS = ["ControllersChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
+  "resource://gre/modules/ActorChild.jsm"
+);
 
 class ControllersChild extends ActorChild {
   receiveMessage(message) {
     switch (message.name) {
       case "ControllerCommands:Do":
-        if (this.docShell.isCommandEnabled(message.data))
+        if (this.docShell.isCommandEnabled(message.data)) {
           this.docShell.doCommand(message.data);
+        }
         break;
 
       case "ControllerCommands:DoWithParams":

toolkit/actors/DateTimePickerChild.jsm

@@ -2,9 +2,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-ChromeUtils.defineModuleGetter(this, "BrowserUtils",
+ChromeUtils.defineModuleGetter(
-  "resource://gre/modules/BrowserUtils.jsm");
+  this,
+  "BrowserUtils",
+  "resource://gre/modules/BrowserUtils.jsm"
+);
 
 var EXPORTED_SYMBOLS = ["DateTimePickerChild"];
 
@@ -39,7 +42,8 @@ class DateTimePickerChild extends JSWindowActorChild {
       // An event dispatch to it can't be accessed by document.
       let win = this._inputElement.ownerGlobal;
       dateTimeBoxElement.dispatchEvent(
-        new win.CustomEvent("MozSetDateTimePickerState", { detail: false }));
+        new win.CustomEvent("MozSetDateTimePickerState", { detail: false })
+      );
     }
 
     this._inputElement = null;
@@ -64,7 +68,8 @@ class DateTimePickerChild extends JSWindowActorChild {
    * Helper function that returns the CSS direction property of the element.
    */
   getComputedDirection(aElement) {
-    return aElement.ownerGlobal.getComputedStyle(aElement)
+    return aElement.ownerGlobal
+      .getComputedStyle(aElement)
       .getPropertyValue("direction");
   }
 
@@ -105,8 +110,10 @@ class DateTimePickerChild extends JSWindowActorChild {
           // dateTimeBoxElement is within UA Widget Shadow DOM.
           // An event dispatch to it can't be accessed by document.
           dateTimeBoxElement.dispatchEvent(
-            new win.CustomEvent("MozPickerValueChanged",
+            new win.CustomEvent("MozPickerValueChanged", {
-              { detail: Cu.cloneInto(aMessage.data, win) }));
+              detail: Cu.cloneInto(aMessage.data, win),
+            })
+          );
         }
         break;
       }
@@ -123,8 +130,13 @@ class DateTimePickerChild extends JSWindowActorChild {
     switch (aEvent.type) {
       case "MozOpenDateTimePicker": {
         // Time picker is disabled when preffed off
-        if (!(aEvent.originalTarget instanceof aEvent.originalTarget.ownerGlobal.HTMLInputElement) ||
+        if (
-            (aEvent.originalTarget.type == "time" && !this.getTimePickerPref())) {
+          !(
+            aEvent.originalTarget instanceof
+            aEvent.originalTarget.ownerGlobal.HTMLInputElement
+          ) ||
+          (aEvent.originalTarget.type == "time" && !this.getTimePickerPref())
+        ) {
           return;
         }
 
@@ -139,7 +151,9 @@ class DateTimePickerChild extends JSWindowActorChild {
 
         let dateTimeBoxElement = this._inputElement.dateTimeBoxElement;
         if (!dateTimeBoxElement) {
-          throw new Error("How do we get this event without a UA Widget or XBL binding?");
+          throw new Error(
+            "How do we get this event without a UA Widget or XBL binding?"
+          );
         }
 
         if (this._inputElement.openOrClosedShadowRoot) {
@@ -148,7 +162,8 @@ class DateTimePickerChild extends JSWindowActorChild {
           // the event is not composed.
           let win = this._inputElement.ownerGlobal;
           dateTimeBoxElement.dispatchEvent(
-            new win.CustomEvent("MozSetDateTimePickerState", { detail: true }));
+            new win.CustomEvent("MozSetDateTimePickerState", { detail: true })
+          );
         }
 
         this.addListeners(this._inputElement);
@@ -161,8 +176,8 @@ class DateTimePickerChild extends JSWindowActorChild {
           detail: {
             // Pass partial value if it's available, otherwise pass input
             // element's value.
-            value: Object.keys(value).length > 0 ? value
+            value:
-                                                 : this._inputElement.value,
+              Object.keys(value).length > 0 ? value : this._inputElement.value,
             min: this._inputElement.getMinimum(),
             max: this._inputElement.getMaximum(),
             step: this._inputElement.getStep(),
@@ -183,8 +198,10 @@ class DateTimePickerChild extends JSWindowActorChild {
         break;
       }
       case "pagehide": {
-        if (this._inputElement &&
+        if (
-            this._inputElement.ownerDocument == aEvent.target) {
+          this._inputElement &&
+          this._inputElement.ownerDocument == aEvent.target
+        ) {
           this.sendAsyncMessage("FormDateTime:ClosePicker", {});
           this.close();
         }

toolkit/actors/DateTimePickerParent.jsm

@@ -13,8 +13,12 @@ function debug(aStr) {
 
 var EXPORTED_SYMBOLS = ["DateTimePickerParent"];
 
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-ChromeUtils.defineModuleGetter(this, "DateTimePickerPanel", "resource://gre/modules/DateTimePickerPanel.jsm");
+ChromeUtils.defineModuleGetter(
+  this,
+  "DateTimePickerPanel",
+  "resource://gre/modules/DateTimePickerPanel.jsm"
+);
 
 /*
  * DateTimePickerParent receives message from content side (input box) and
@@ -78,7 +82,9 @@ class DateTimePickerParent extends JSWindowActorParent {
 
     this._anchor = aBrowser.popupAnchor;
     if (!this._anchor) {
-      throw new Error("No popup anchor for this browser, cannot show date picker");
+      throw new Error(
+        "No popup anchor for this browser, cannot show date picker"
+      );
     }
 
     this._anchor.left = rect.left;
@@ -91,8 +97,10 @@ class DateTimePickerParent extends JSWindowActorParent {
 
     let window = aBrowser.ownerGlobal;
     let tabbrowser = window.gBrowser;
-    if (Services.focus.activeWindow != window ||
+    if (
-        (tabbrowser && tabbrowser.selectedBrowser != aBrowser)) {
+      Services.focus.activeWindow != window ||
+      (tabbrowser && tabbrowser.selectedBrowser != aBrowser)
+    ) {
       // We were sent a message from a window or tab that went into the
       // background, so we'll ignore it for now.
       return;
@@ -132,6 +140,9 @@ class DateTimePickerParent extends JSWindowActorParent {
       return;
     }
     this._picker.element.removeEventListener("popuphidden", this);
-    this._picker.element.removeEventListener("DateTimePickerValueChanged", this);
+    this._picker.element.removeEventListener(
+      "DateTimePickerValueChanged",
+      this
+    );
   }
 }

toolkit/actors/ExtFindChild.jsm

@@ -6,10 +6,15 @@
 
 var EXPORTED_SYMBOLS = ["ExtFindChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
+  "resource://gre/modules/ActorChild.jsm"
+);
 
-ChromeUtils.defineModuleGetter(this, "FindContent",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/FindContent.jsm");
+  this,
+  "FindContent",
+  "resource://gre/modules/FindContent.jsm"
+);
 
 class ExtFindChild extends ActorChild {
   async receiveMessage(message) {

toolkit/actors/FindBarChild.jsm

@@ -6,12 +6,19 @@
 
 var EXPORTED_SYMBOLS = ["FindBarChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
-const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
 
-ChromeUtils.defineModuleGetter(this, "BrowserUtils",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/BrowserUtils.jsm");
+  this,
+  "BrowserUtils",
+  "resource://gre/modules/BrowserUtils.jsm"
+);
 
 class FindBarChild extends ActorChild {
   constructor(dispatcher) {
@@ -19,11 +26,16 @@ class FindBarChild extends ActorChild {
 
     this._findKey = null;
 
-    XPCOMUtils.defineLazyProxy(this, "FindBarContent", () => {
+    XPCOMUtils.defineLazyProxy(
+      this,
+      "FindBarContent",
+      () => {
         let tmp = {};
         ChromeUtils.import("resource://gre/modules/FindBarContent.jsm", tmp);
         return new tmp.FindBarContent(this.mm);
-    }, {inQuickFind: false, inPassThrough: false});
+      },
+      { inQuickFind: false, inPassThrough: false }
+    );
   }
 
   /**
@@ -54,10 +66,9 @@ class FindBarChild extends ActorChild {
   }
 
   onKeypress(event) {
-    let {FindBarContent} = this;
+    let { FindBarContent } = this;
 
-    if (!FindBarContent.inPassThrough &&
+    if (!FindBarContent.inPassThrough && this.eventMatchesFindShortcut(event)) {
-        this.eventMatchesFindShortcut(event)) {
       return FindBarContent.start(event);
     }
 
@@ -67,9 +78,14 @@ class FindBarChild extends ActorChild {
       return null;
     }
 
-    if (event.ctrlKey || event.altKey || event.metaKey || event.defaultPrevented ||
+    if (
+      event.ctrlKey ||
+      event.altKey ||
+      event.metaKey ||
+      event.defaultPrevented ||
       !BrowserUtils.mimeTypeIsTextBased(this.content.document.contentType) ||
-        !BrowserUtils.canFindInPage(location)) {
+      !BrowserUtils.canFindInPage(location)
+    ) {
       return null;
     }
 
@@ -90,8 +106,13 @@ class FindBarChild extends ActorChild {
   }
 }
 
-XPCOMUtils.defineLazyPreferenceGetter(FindBarChild, "findAsYouType",
+XPCOMUtils.defineLazyPreferenceGetter(
-  "accessibility.typeaheadfind");
+  FindBarChild,
-XPCOMUtils.defineLazyPreferenceGetter(FindBarChild, "manualFAYT",
+  "findAsYouType",
-  "accessibility.typeaheadfind.manual");
+  "accessibility.typeaheadfind"
-
+);
+XPCOMUtils.defineLazyPreferenceGetter(
+  FindBarChild,
+  "manualFAYT",
+  "accessibility.typeaheadfind.manual"
+);

toolkit/actors/FinderChild.jsm

@@ -6,10 +6,15 @@
 
 var EXPORTED_SYMBOLS = ["FinderChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
+  "resource://gre/modules/ActorChild.jsm"
+);
 
-ChromeUtils.defineModuleGetter(this, "Finder",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/Finder.jsm");
+  this,
+  "Finder",
+  "resource://gre/modules/Finder.jsm"
+);
 
 const MESSAGES = [
   "Finder:CaseSensitive",
@@ -70,26 +75,36 @@ class FinderChild extends ActorChild {
 
       case "Finder:SetSearchStringToSelection": {
         let selection = this._finder.setSearchStringToSelection();
-        this.mm.sendAsyncMessage("Finder:CurrentSelectionResult",
+        this.mm.sendAsyncMessage("Finder:CurrentSelectionResult", {
-                                 { selection,
+          selection,
-                                   initial: false });
+          initial: false,
+        });
         break;
       }
 
       case "Finder:GetInitialSelection": {
         let selection = this._finder.getActiveSelectionText();
-        this.mm.sendAsyncMessage("Finder:CurrentSelectionResult",
+        this.mm.sendAsyncMessage("Finder:CurrentSelectionResult", {
-                                 { selection,
+          selection,
-                                   initial: true });
+          initial: true,
+        });
         break;
       }
 
       case "Finder:FastFind":
-        this._finder.fastFind(data.searchString, data.linksOnly, data.drawOutline);
+        this._finder.fastFind(
+          data.searchString,
+          data.linksOnly,
+          data.drawOutline
+        );
         break;
 
       case "Finder:FindAgain":
-        this._finder.findAgain(data.findBackwards, data.linksOnly, data.drawOutline);
+        this._finder.findAgain(
+          data.findBackwards,
+          data.linksOnly,
+          data.drawOutline
+        );
         break;
 
       case "Finder:Highlight":

toolkit/actors/InlineSpellCheckerChild.jsm

@@ -8,8 +8,11 @@
 
 var EXPORTED_SYMBOLS = ["InlineSpellCheckerChild"];
 
-ChromeUtils.defineModuleGetter(this, "InlineSpellCheckerContent",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/InlineSpellCheckerContent.jsm");
+  this,
+  "InlineSpellCheckerContent",
+  "resource://gre/modules/InlineSpellCheckerContent.jsm"
+);
 
 class InlineSpellCheckerChild extends JSWindowActorChild {
   receiveMessage(msg) {

toolkit/actors/InlineSpellCheckerParent.jsm

@@ -10,13 +10,13 @@ var EXPORTED_SYMBOLS = ["InlineSpellCheckerParent"];
 
 class InlineSpellCheckerParent extends JSWindowActorParent {
   selectDictionary({ localeCode }) {
-    this.sendAsyncMessage("InlineSpellChecker:selectDictionary",
+    this.sendAsyncMessage("InlineSpellChecker:selectDictionary", {
-                          { localeCode });
+      localeCode,
+    });
   }
 
   replaceMisspelling({ index }) {
-    this.sendAsyncMessage("InlineSpellChecker:replaceMisspelling",
+    this.sendAsyncMessage("InlineSpellChecker:replaceMisspelling", { index });
-                          { index });
   }
 
   toggleEnabled() {

toolkit/actors/KeyPressEventModelCheckerChild.jsm

@@ -8,9 +8,13 @@
 
 var EXPORTED_SYMBOLS = ["KeyPressEventModelCheckerChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {AppConstants} = ChromeUtils.import("resource://gre/modules/AppConstants.jsm");
+  "resource://gre/modules/ActorChild.jsm"
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+);
+const { AppConstants } = ChromeUtils.import(
+  "resource://gre/modules/AppConstants.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 class KeyPressEventModelCheckerChild extends ActorChild {
   // Currently, the event is dispatched only when the document becomes editable
@@ -29,27 +33,33 @@ class KeyPressEventModelCheckerChild extends ActorChild {
     // here, conflated model isn't used forcibly.  If you need it, you need
     // to change WidgetKeyboardEvent, dom::KeyboardEvent and PresShell.
     let model = Document.KEYPRESS_EVENT_MODEL_DEFAULT;
-    if (this._isOldOfficeOnlineServer(aEvent.target) ||
+    if (
-        this._isOldConfluence(aEvent.target.ownerGlobal)) {
+      this._isOldOfficeOnlineServer(aEvent.target) ||
+      this._isOldConfluence(aEvent.target.ownerGlobal)
+    ) {
       model = Document.KEYPRESS_EVENT_MODEL_SPLIT;
     }
     aEvent.target.setKeyPressEventModel(model);
   }
 
   _isOldOfficeOnlineServer(aDocument) {
-    let editingElement =
+    let editingElement = aDocument.getElementById(
-        aDocument.getElementById("WACViewPanel_EditingElement");
+      "WACViewPanel_EditingElement"
+    );
     // If it's not Office Online Server, don't include it into the telemetry
     // because we just need to collect percentage of old version in all loaded
     // Office Online Server instances.
     if (!editingElement) {
       return false;
     }
-    let isOldVersion =
+    let isOldVersion = !editingElement.classList.contains(
-        !editingElement.classList.contains(
+      "WACViewPanel_DisableLegacyKeyCodeAndCharCode"
-            "WACViewPanel_DisableLegacyKeyCodeAndCharCode");
+    );
-    Services.telemetry.keyedScalarAdd("dom.event.office_online_load_count",
+    Services.telemetry.keyedScalarAdd(
-                                      isOldVersion ? "old" : "new", 1);
+      "dom.event.office_online_load_count",
+      isOldVersion ? "old" : "new",
+      1
+    );
     return isOldVersion;
   }
 
@@ -85,8 +95,10 @@ class KeyPressEventModelCheckerChild extends ActorChild {
     // instance.  So, let's check the version whether it allows conflated
     // keypress event model.
     try {
-      let {author, version} =
+      let {
-          new tinyMCEObject.plugins.CursorTargetPlugin().getInfo();
+        author,
+        version,
+      } = new tinyMCEObject.plugins.CursorTargetPlugin().getInfo();
       // If it's not Confluence, don't include it into the telemetry because
       // we just need to collect percentage of old version in all loaded
       // Confluence instances.
@@ -94,8 +106,11 @@ class KeyPressEventModelCheckerChild extends ActorChild {
         return false;
       }
       let isOldVersion = version === "1.0";
-      Services.telemetry.keyedScalarAdd("dom.event.confluence_load_count",
+      Services.telemetry.keyedScalarAdd(
-                                        isOldVersion ? "old" : "new", 1);
+        "dom.event.confluence_load_count",
+        isOldVersion ? "old" : "new",
+        1
+      );
       return isOldVersion;
     } catch (e) {
       return false;

toolkit/actors/PictureInPictureChild.jsm

@@ -6,13 +6,23 @@
 
 var EXPORTED_SYMBOLS = ["PictureInPictureChild", "PictureInPictureToggleChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
 
-ChromeUtils.defineModuleGetter(this, "DeferredTask",
+ChromeUtils.defineModuleGetter(
-  "resource://gre/modules/DeferredTask.jsm");
+  this,
-ChromeUtils.defineModuleGetter(this, "Services",
+  "DeferredTask",
-  "resource://gre/modules/Services.jsm");
+  "resource://gre/modules/DeferredTask.jsm"
+);
+ChromeUtils.defineModuleGetter(
+  this,
+  "Services",
+  "resource://gre/modules/Services.jsm"
+);
 
 XPCOMUtils.defineLazyGlobalGetters(this, ["InspectorUtils"]);
 
@@ -97,10 +107,12 @@ class PictureInPictureToggleChild extends ActorChild {
 
     switch (event.type) {
       case "canplay": {
-        if (this.toggleEnabled &&
+        if (
+          this.toggleEnabled &&
           event.target instanceof this.content.HTMLVideoElement &&
           !event.target.controls &&
-            event.target.ownerDocument == this.content.document) {
+          event.target.ownerDocument == this.content.document
+        ) {
           this.registerVideo(event.target);
         }
         break;
@@ -229,29 +241,37 @@ class PictureInPictureToggleChild extends ActorChild {
     // part of the outer window, we need to also remove it in a
     // pagehide event listener in the event that the page unloads
     // before stopTrackingMouseOverVideos fires.
-    this.content.windowRoot.addEventListener("pointerdown", this,
+    this.content.windowRoot.addEventListener("pointerdown", this, {
-                                             { capture: true });
+      capture: true,
-    this.content.windowRoot.addEventListener("mousedown", this,
+    });
-                                             { capture: true });
+    this.content.windowRoot.addEventListener("mousedown", this, {
-    this.content.windowRoot.addEventListener("mouseup", this,
+      capture: true,
-                                             { capture: true });
+    });
-    this.content.windowRoot.addEventListener("pointerup", this,
+    this.content.windowRoot.addEventListener("mouseup", this, {
-                                             { capture: true });
+      capture: true,
-    this.content.windowRoot.addEventListener("click", this,
+    });
-                                             { capture: true });
+    this.content.windowRoot.addEventListener("pointerup", this, {
+      capture: true,
+    });
+    this.content.windowRoot.addEventListener("click", this, { capture: true });
   }
 
   removeMouseButtonListeners() {
-    this.content.windowRoot.removeEventListener("pointerdown", this,
+    this.content.windowRoot.removeEventListener("pointerdown", this, {
-                                                { capture: true });
+      capture: true,
-    this.content.windowRoot.removeEventListener("mousedown", this,
+    });
-                                                { capture: true });
+    this.content.windowRoot.removeEventListener("mousedown", this, {
-    this.content.windowRoot.removeEventListener("mouseup", this,
+      capture: true,
-                                                { capture: true });
+    });
-    this.content.windowRoot.removeEventListener("pointerup", this,
+    this.content.windowRoot.removeEventListener("mouseup", this, {
-                                                { capture: true });
+      capture: true,
-    this.content.windowRoot.removeEventListener("click", this,
+    });
-                                                { capture: true });
+    this.content.windowRoot.removeEventListener("pointerup", this, {
+      capture: true,
+    });
+    this.content.windowRoot.removeEventListener("click", this, {
+      capture: true,
+    });
   }
 
   /**
@@ -274,8 +294,10 @@ class PictureInPictureToggleChild extends ActorChild {
         this.checkLastMouseMove();
       }, MOUSEMOVE_PROCESSING_DELAY_MS);
     }
-    this.content.document.addEventListener("mousemove", this,
+    this.content.document.addEventListener("mousemove", this, {
-                                           { mozSystemGroup: true, capture: true });
+      mozSystemGroup: true,
+      capture: true,
+    });
     this.addMouseButtonListeners();
   }
 
@@ -287,8 +309,10 @@ class PictureInPictureToggleChild extends ActorChild {
   stopTrackingMouseOverVideos() {
     let state = this.docState;
     state.mousemoveDeferredTask.disarm();
-    this.content.document.removeEventListener("mousemove", this,
+    this.content.document.removeEventListener("mousemove", this, {
-                                              { mozSystemGroup: true, capture: true });
+      mozSystemGroup: true,
+      capture: true,
+    });
     this.removeMouseButtonListeners();
     let oldOverVideo = state.weakOverVideo && state.weakOverVideo.get();
     if (oldOverVideo) {
@@ -329,8 +353,17 @@ class PictureInPictureToggleChild extends ActorChild {
     // We pass the aOnlyVisible boolean argument to check that the video isn't
     // occluded by anything visible at the point of mousedown. If it is, we'll
     // ignore the mousedown.
-    let elements = winUtils.nodesFromRect(clientX, clientY, 1, 1, 1, 1, true,
+    let elements = winUtils.nodesFromRect(
-                                          false, true /* aOnlyVisible */);
+      clientX,
+      clientY,
+      1,
+      1,
+      1,
+      1,
+      true,
+      false,
+      true /* aOnlyVisible */
+    );
     if (!Array.from(elements).includes(video)) {
       return;
     }
@@ -341,10 +374,13 @@ class PictureInPictureToggleChild extends ActorChild {
       state.clickedElement = Cu.getWeakReference(event.originalTarget);
       event.stopImmediatePropagation();
 
-      Services.telemetry.keyedScalarAdd("pictureinpicture.opened_method", "toggle", 1);
+      Services.telemetry.keyedScalarAdd(
+        "pictureinpicture.opened_method",
+        "toggle",
+        1
+      );
 
-      let pipEvent =
+      let pipEvent = new this.content.CustomEvent("MozTogglePictureInPicture", {
-        new this.content.CustomEvent("MozTogglePictureInPicture", {
         bubbles: true,
       });
       video.dispatchEvent(pipEvent);
@@ -416,12 +452,23 @@ class PictureInPictureToggleChild extends ActorChild {
     // We use winUtils.nodesFromRect instead of document.elementsFromPoint,
     // since document.elementsFromPoint always flushes layout. The 1's in that
     // function call are for the size of the rect that we want, which is 1x1.
-    let elements = winUtils.nodesFromRect(clientX, clientY, 1, 1, 1, 1, true,
+    let elements = winUtils.nodesFromRect(
-                                          false, false);
+      clientX,
+      clientY,
+      1,
+      1,
+      1,
+      1,
+      true,
+      false,
+      false
+    );
 
     for (let element of elements) {
-      if (state.weakVisibleVideos.has(element) &&
+      if (
-          !element.isCloningElementVisually) {
+        state.weakVisibleVideos.has(element) &&
+        !element.isCloningElementVisually
+      ) {
         this.onMouseOverVideo(element, event);
         return;
       }
@@ -527,13 +574,16 @@ class PictureInPictureToggleChild extends ActorChild {
    * @return {Boolean}
    */
   isMouseOverToggle(toggle, event) {
-    let toggleRect =
+    let toggleRect = toggle.ownerGlobal.windowUtils.getBoundsWithoutFlushing(
-      toggle.ownerGlobal.windowUtils.getBoundsWithoutFlushing(toggle);
+      toggle
+    );
     let { clientX, clientY } = event;
-    return clientX >= toggleRect.left &&
+    return (
+      clientX >= toggleRect.left &&
       clientX <= toggleRect.right &&
       clientY >= toggleRect.top &&
-           clientY <= toggleRect.bottom;
+      clientY <= toggleRect.bottom
+    );
   }
 
   /**
@@ -547,7 +597,12 @@ class PictureInPictureToggleChild extends ActorChild {
 
 class PictureInPictureChild extends ActorChild {
   static videoIsPlaying(video) {
-    return !!(video.currentTime > 0 && !video.paused && !video.ended && video.readyState > 2);
+    return !!(
+      video.currentTime > 0 &&
+      !video.paused &&
+      !video.ended &&
+      video.readyState > 2
+    );
   }
 
   handleEvent(event) {
@@ -660,8 +715,9 @@ class PictureInPictureChild extends ActorChild {
     if (this.weakPlayerContent) {
       if (!this.weakPlayerContent.closed) {
         await new Promise(resolve => {
-          this.weakPlayerContent.addEventListener("unload", resolve,
+          this.weakPlayerContent.addEventListener("unload", resolve, {
-                                                  { once: true });
+            once: true,
+          });
         });
       }
       // Nothing should be holding a reference to the Picture-in-Picture
@@ -740,8 +796,8 @@ class PictureInPictureChild extends ActorChild {
       return;
     }
 
-    let webProgress = this.mm
+    let webProgress = this.mm.docShell
-                          .docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+      .QueryInterface(Ci.nsIInterfaceRequestor)
       .getInterface(Ci.nsIWebProgress);
     if (webProgress.isLoadingDocument) {
       await new Promise(resolve => {
@@ -777,12 +833,16 @@ class PictureInPictureChild extends ActorChild {
 
     this.trackOriginatingVideo(originatingVideo);
 
-    this.content.addEventListener("unload", () => {
+    this.content.addEventListener(
+      "unload",
+      () => {
         if (this.weakVideo) {
           this.weakVideo.stopCloningElementVisually();
         }
         gWeakVideo = null;
-    }, { once: true });
+      },
+      { once: true }
+    );
 
     gWeakPlayerContent = Cu.getWeakReference(this.content);
   }

toolkit/actors/PopupBlockingChild.jsm

@@ -7,8 +7,12 @@
 
 var EXPORTED_SYMBOLS = ["PopupBlockingChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
 
 class PopupBlockingChild extends ActorChild {
   constructor(dispatcher) {
@@ -36,7 +40,11 @@ class PopupBlockingChild extends ActorChild {
           // If we have a requesting window and the requesting document is
           // still the current document, open the popup.
           if (dwi && dwi.document == internals.requestingDocument) {
-            dwi.open(data.popupWindowURIspec, data.popupWindowName, data.popupWindowFeatures);
+            dwi.open(
+              data.popupWindowURIspec,
+              data.popupWindowName,
+              data.popupWindowFeatures
+            );
           }
         }
         break;
@@ -60,10 +68,12 @@ class PopupBlockingChild extends ActorChild {
             popupWindowURIspec = popupWindowURIspec.substring(0, 500);
           }
 
-          popupData.push({popupWindowURIspec});
+          popupData.push({ popupWindowURIspec });
         }
 
-        this.mm.sendAsyncMessage("PopupBlocking:ReplyGetBlockedPopupList", {popupData});
+        this.mm.sendAsyncMessage("PopupBlocking:ReplyGetBlockedPopupList", {
+          popupData,
+        });
         break;
       }
     }
@@ -93,7 +103,9 @@ class PopupBlockingChild extends ActorChild {
     }
 
     let obj = {
-      popupWindowURIspec: ev.popupWindowURI ? ev.popupWindowURI.spec : "about:blank",
+      popupWindowURIspec: ev.popupWindowURI
+        ? ev.popupWindowURI.spec
+        : "about:blank",
       popupWindowFeatures: ev.popupWindowFeatures,
       popupWindowName: ev.popupWindowName,
     };
@@ -113,10 +125,15 @@ class PopupBlockingChild extends ActorChild {
       let i = 0;
       let oldLength = this.popupData.length;
       while (i < this.popupData.length) {
-        let {requestingWindow, requestingDocument} = this.popupDataInternal[i];
+        let { requestingWindow, requestingDocument } = this.popupDataInternal[
+          i
+        ];
         // Filter out irrelevant reports.
-        if (requestingWindow && requestingWindow.document == requestingDocument &&
+        if (
-            requestingDocument != removedDoc) {
+          requestingWindow &&
+          requestingWindow.document == requestingDocument &&
+          requestingDocument != removedDoc
+        ) {
           i++;
         } else {
           this.popupData.splice(i, 1);
@@ -134,13 +151,15 @@ class PopupBlockingChild extends ActorChild {
   }
 
   updateBlockedPopups(freshPopup) {
-    this.mm.sendAsyncMessage("PopupBlocking:UpdateBlockedPopups",
+    this.mm.sendAsyncMessage("PopupBlocking:UpdateBlockedPopups", {
-      {
       count: this.popupData ? this.popupData.length : 0,
       freshPopup,
     });
   }
 }
 
-XPCOMUtils.defineLazyPreferenceGetter(PopupBlockingChild, "maxReportedPopups",
+XPCOMUtils.defineLazyPreferenceGetter(
-  "privacy.popups.maxReported");
+  PopupBlockingChild,
+  "maxReportedPopups",
+  "privacy.popups.maxReported"
+);

toolkit/actors/PrintingChild.jsm

@@ -6,11 +6,16 @@
 
 var EXPORTED_SYMBOLS = ["PrintingChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
-ChromeUtils.defineModuleGetter(this, "ReaderMode",
+ChromeUtils.defineModuleGetter(
-  "resource://gre/modules/ReaderMode.jsm");
+  this,
+  "ReaderMode",
+  "resource://gre/modules/ReaderMode.jsm"
+);
 
 class PrintingChild extends ActorChild {
   // Bug 1088061: nsPrintJob's DoCommonPrint currently expects the
@@ -21,8 +26,10 @@ class PrintingChild extends ActorChild {
   // this hackery.
 
   get shouldSavePrintSettings() {
-    return Services.prefs.getBoolPref("print.use_global_printsettings") &&
+    return (
-           Services.prefs.getBoolPref("print.save_print_settings");
+      Services.prefs.getBoolPref("print.use_global_printsettings") &&
+      Services.prefs.getBoolPref("print.save_print_settings")
+    );
   }
 
   handleEvent(event) {
@@ -72,10 +79,12 @@ class PrintingChild extends ActorChild {
     let data = message.data;
     switch (message.name) {
       case "Printing:Preview:Enter": {
-        this.enterPrintPreview(Services.wm.getOuterWindowWithId(data.windowID),
+        this.enterPrintPreview(
+          Services.wm.getOuterWindowWithId(data.windowID),
           data.simplifiedMode,
           data.changingBrowsers,
-                               data.defaultPrinterName);
+          data.defaultPrinterName
+        );
         break;
       }
 
@@ -90,14 +99,19 @@ class PrintingChild extends ActorChild {
       }
 
       case "Printing:Preview:ParseDocument": {
-        this.parseDocument(data.URL, Services.wm.getOuterWindowWithId(data.windowID));
+        this.parseDocument(
+          data.URL,
+          Services.wm.getOuterWindowWithId(data.windowID)
+        );
         break;
       }
 
       case "Printing:Print": {
-        this.print(Services.wm.getOuterWindowWithId(data.windowID),
+        this.print(
+          Services.wm.getOuterWindowWithId(data.windowID),
           data.simplifiedMode,
-                   data.defaultPrinterName);
+          data.defaultPrinterName
+        );
         break;
       }
     }
@@ -105,19 +119,25 @@ class PrintingChild extends ActorChild {
 
   getPrintSettings(defaultPrinterName) {
     try {
-      let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
+      let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"].getService(
-                    .getService(Ci.nsIPrintSettingsService);
+        Ci.nsIPrintSettingsService
+      );
 
       let printSettings = PSSVC.globalPrintSettings;
       if (!printSettings.printerName) {
         printSettings.printerName = defaultPrinterName;
       }
       // First get any defaults from the printer
-      PSSVC.initPrintSettingsFromPrinter(printSettings.printerName,
+      PSSVC.initPrintSettingsFromPrinter(
-                                         printSettings);
+        printSettings.printerName,
+        printSettings
+      );
       // now augment them with any values from last time
-      PSSVC.initPrintSettingsFromPrefs(printSettings, true,
+      PSSVC.initPrintSettingsFromPrefs(
-                                       printSettings.kInitSaveAll);
+        printSettings,
+        true,
+        printSettings.kInitSaveAll
+      );
 
       return printSettings;
     } catch (e) {
@@ -130,12 +150,14 @@ class PrintingChild extends ActorChild {
   parseDocument(URL, contentWindow) {
     // By using ReaderMode primitives, we parse given document and place the
     // resulting JS object into the DOM of current browser.
-    let articlePromise = ReaderMode.parseDocument(contentWindow.document).catch(Cu.reportError);
+    let articlePromise = ReaderMode.parseDocument(contentWindow.document).catch(
-    articlePromise.then((article) => {
+      Cu.reportError
+    );
+    articlePromise.then(article => {
       // We make use of a web progress listener in order to know when the content we inject
       // into the DOM has finished rendering. If our layout engine is still painting, we
       // will wait for MozAfterPaint event to be fired.
-      let {mm} = this;
+      let { mm } = this;
       let webProgressListener = {
         onStateChange(webProgress, req, flags, status) {
           if (flags & Ci.nsIWebProgressListener.STATE_STOP) {
@@ -167,12 +189,16 @@ class PrintingChild extends ActorChild {
         ]),
       };
 
-      const {content, docShell} = this.mm;
+      const { content, docShell } = this.mm;
 
       // Here we QI the docShell into a nsIWebProgress passing our web progress listener in.
-      let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+      let webProgress = docShell
+        .QueryInterface(Ci.nsIInterfaceRequestor)
         .getInterface(Ci.nsIWebProgress);
-      webProgress.addProgressListener(webProgressListener, Ci.nsIWebProgress.NOTIFY_STATE_REQUEST);
+      webProgress.addProgressListener(
+        webProgressListener,
+        Ci.nsIWebProgress.NOTIFY_STATE_REQUEST
+      );
 
       content.document.head.innerHTML = "";
 
@@ -186,14 +212,20 @@ class PrintingChild extends ActorChild {
       // Create link element referencing aboutReader.css and append it to head
       let headStyleElement = content.document.createElement("link");
       headStyleElement.setAttribute("rel", "stylesheet");
-      headStyleElement.setAttribute("href", "chrome://global/skin/aboutReader.css");
+      headStyleElement.setAttribute(
+        "href",
+        "chrome://global/skin/aboutReader.css"
+      );
       headStyleElement.setAttribute("type", "text/css");
       content.document.head.appendChild(headStyleElement);
 
       // Create link element referencing simplifyMode.css and append it to head
       headStyleElement = content.document.createElement("link");
       headStyleElement.setAttribute("rel", "stylesheet");
-      headStyleElement.setAttribute("href", "chrome://global/content/simplifyMode.css");
+      headStyleElement.setAttribute(
+        "href",
+        "chrome://global/content/simplifyMode.css"
+      );
       headStyleElement.setAttribute("type", "text/css");
       content.document.head.appendChild(headStyleElement);
 
@@ -242,18 +274,29 @@ class PrintingChild extends ActorChild {
         contentElement.appendChild(readerContent);
 
         let articleUri = Services.io.newURI(article.url);
-        let parserUtils = Cc["@mozilla.org/parserutils;1"].getService(Ci.nsIParserUtils);
+        let parserUtils = Cc["@mozilla.org/parserutils;1"].getService(
-        let contentFragment = parserUtils.parseFragment(article.content,
+          Ci.nsIParserUtils
-          Ci.nsIParserUtils.SanitizerDropForms | Ci.nsIParserUtils.SanitizerAllowStyle,
+        );
-          false, articleUri, readerContent);
+        let contentFragment = parserUtils.parseFragment(
+          article.content,
+          Ci.nsIParserUtils.SanitizerDropForms |
+            Ci.nsIParserUtils.SanitizerAllowStyle,
+          false,
+          articleUri,
+          readerContent
+        );
 
         readerContent.appendChild(contentFragment);
 
         // Display reader content element
         readerContent.style.display = "block";
       } else {
-        let aboutReaderStrings = Services.strings.createBundle("chrome://global/locale/aboutReader.properties");
+        let aboutReaderStrings = Services.strings.createBundle(
-        let errorMessage = aboutReaderStrings.GetStringFromName("aboutReader.loadError");
+          "chrome://global/locale/aboutReader.properties"
+        );
+        let errorMessage = aboutReaderStrings.GetStringFromName(
+          "aboutReader.loadError"
+        );
 
         content.document.title = errorMessage;
 
@@ -269,16 +312,22 @@ class PrintingChild extends ActorChild {
     });
   }
 
-  enterPrintPreview(contentWindow, simplifiedMode, changingBrowsers, defaultPrinterName) {
+  enterPrintPreview(
-    const {docShell} = this;
+    contentWindow,
+    simplifiedMode,
+    changingBrowsers,
+    defaultPrinterName
+  ) {
+    const { docShell } = this;
     try {
       let printSettings = this.getPrintSettings(defaultPrinterName);
 
       // If we happen to be on simplified mode, we need to set docURL in order
       // to generate header/footer content correctly, since simplified tab has
       // "about:blank" as its URI.
-      if (printSettings && simplifiedMode)
+      if (printSettings && simplifiedMode) {
         printSettings.docURL = contentWindow.document.baseURI;
+      }
 
       // The print preview docshell will be in a different TabGroup, so
       // printPreviewInitialize must be run in a separate runnable to avoid
@@ -288,13 +337,17 @@ class PrintingChild extends ActorChild {
           let listener = new PrintingListener(this.mm);
 
           this.printPreviewInitializingInfo = { changingBrowsers };
-          docShell.initOrReusePrintPreviewViewer().printPreview(printSettings, contentWindow, listener);
+          docShell
+            .initOrReusePrintPreviewViewer()
+            .printPreview(printSettings, contentWindow, listener);
         } catch (error) {
           // This might fail if we, for example, attempt to print a XUL document.
           // In that case, we inform the parent to bail out of print preview.
           Cu.reportError(error);
           this.printPreviewInitializingInfo = null;
-          this.mm.sendAsyncMessage("Printing:Preview:Entered", { failed: true });
+          this.mm.sendAsyncMessage("Printing:Preview:Entered", {
+            failed: true,
+          });
         }
       };
 
@@ -302,8 +355,10 @@ class PrintingChild extends ActorChild {
       // initial setup of a previous preview request. We delay this one until
       // that has finished because running them at the same time will almost
       // certainly cause failures.
-      if (this.printPreviewInitializingInfo &&
+      if (
-          !this.printPreviewInitializingInfo.entered) {
+        this.printPreviewInitializingInfo &&
+        !this.printPreviewInitializingInfo.entered
+      ) {
         this.printPreviewInitializingInfo.nextRequest = printPreviewInitialize;
       } else {
         Services.tm.dispatchToMainThread(printPreviewInitialize);
@@ -367,15 +422,24 @@ class PrintingChild extends ActorChild {
       }
     }
 
-    if ((!printCancelled || printSettings.saveOnCancel) &&
+    if (
-        this.shouldSavePrintSettings) {
+      (!printCancelled || printSettings.saveOnCancel) &&
-      let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
+      this.shouldSavePrintSettings
-                    .getService(Ci.nsIPrintSettingsService);
+    ) {
+      let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"].getService(
+        Ci.nsIPrintSettingsService
+      );
 
-      PSSVC.savePrintSettingsToPrefs(printSettings, true,
+      PSSVC.savePrintSettingsToPrefs(
-                                     printSettings.kInitSaveAll);
+        printSettings,
-      PSSVC.savePrintSettingsToPrefs(printSettings, false,
+        true,
-                                     printSettings.kInitSavePrinterName);
+        printSettings.kInitSaveAll
+      );
+      PSSVC.savePrintSettingsToPrefs(
+        printSettings,
+        false,
+        printSettings.kInitSavePrinterName
+      );
     }
   }
 
@@ -385,19 +449,23 @@ class PrintingChild extends ActorChild {
   }
 
   updatePageCount() {
-    let numPages = this.docShell.initOrReusePrintPreviewViewer().printPreviewNumPages;
+    let numPages = this.docShell.initOrReusePrintPreviewViewer()
+      .printPreviewNumPages;
     this.mm.sendAsyncMessage("Printing:Preview:UpdatePageCount", {
       numPages,
     });
   }
 
   navigate(navType, pageNum) {
-    this.docShell.initOrReusePrintPreviewViewer().printPreviewScrollToPage(navType, pageNum);
+    this.docShell
+      .initOrReusePrintPreviewViewer()
+      .printPreviewScrollToPage(navType, pageNum);
   }
 }
 
-PrintingChild.prototype.QueryInterface =
+PrintingChild.prototype.QueryInterface = ChromeUtils.generateQI([
-  ChromeUtils.generateQI([Ci.nsIPrintingPromptService]);
+  Ci.nsIPrintingPromptService,
+]);
 
 function PrintingListener(global) {
   this.global = global;
@@ -412,9 +480,14 @@ PrintingListener.prototype = {
     });
   },
 
-  onProgressChange(aWebProgress, aRequest, aCurSelfProgress,
+  onProgressChange(
-                   aMaxSelfProgress, aCurTotalProgress,
+    aWebProgress,
-                   aMaxTotalProgress) {
+    aRequest,
+    aCurSelfProgress,
+    aMaxSelfProgress,
+    aCurTotalProgress,
+    aMaxTotalProgress
+  ) {
     this.global.sendAsyncMessage("Printing:Preview:ProgressChange", {
       curSelfProgress: aCurSelfProgress,
       maxSelfProgress: aMaxSelfProgress,

toolkit/actors/PurgeSessionHistoryChild.jsm

@@ -6,14 +6,17 @@
 
 var EXPORTED_SYMBOLS = ["PurgeSessionHistoryChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
+  "resource://gre/modules/ActorChild.jsm"
+);
 
 class PurgeSessionHistoryChild extends ActorChild {
   receiveMessage(message) {
     if (message.name != "Browser:PurgeSessionHistory") {
       return;
     }
-    let sessionHistory = this.docShell.QueryInterface(Ci.nsIWebNavigation).sessionHistory;
+    let sessionHistory = this.docShell.QueryInterface(Ci.nsIWebNavigation)
+      .sessionHistory;
     if (!sessionHistory) {
       return;
     }

toolkit/actors/SelectChild.jsm

@@ -6,12 +6,20 @@
 
 var EXPORTED_SYMBOLS = ["SelectChild"];
 
-const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
 
-ChromeUtils.defineModuleGetter(this, "BrowserUtils",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/BrowserUtils.jsm");
+  this,
-ChromeUtils.defineModuleGetter(this, "DeferredTask",
+  "BrowserUtils",
-                               "resource://gre/modules/DeferredTask.jsm");
+  "resource://gre/modules/BrowserUtils.jsm"
+);
+ChromeUtils.defineModuleGetter(
+  this,
+  "DeferredTask",
+  "resource://gre/modules/DeferredTask.jsm"
+);
 
 XPCOMUtils.defineLazyGlobalGetters(this, ["InspectorUtils"]);
 
@@ -60,7 +68,9 @@ this.SelectContentHelper.prototype = {
     let win = this.element.ownerGlobal;
     win.addEventListener("pagehide", this, { mozSystemGroup: true });
     this.element.addEventListener("blur", this, { mozSystemGroup: true });
-    this.element.addEventListener("transitionend", this, { mozSystemGroup: true });
+    this.element.addEventListener("transitionend", this, {
+      mozSystemGroup: true,
+    });
     let MutationObserver = this.element.ownerGlobal.MutationObserver;
     this.mut = new MutationObserver(mutations => {
       // Something changed the <select> while it was open, so
@@ -68,7 +78,11 @@ this.SelectContentHelper.prototype = {
       // in the very near future.
       this._updateTimer.arm();
     });
-    this.mut.observe(this.element, {childList: true, subtree: true, attributes: true});
+    this.mut.observe(this.element, {
+      childList: true,
+      subtree: true,
+      attributes: true,
+    });
   },
 
   uninit() {
@@ -76,7 +90,9 @@ this.SelectContentHelper.prototype = {
     let win = this.element.ownerGlobal;
     win.removeEventListener("pagehide", this, { mozSystemGroup: true });
     this.element.removeEventListener("blur", this, { mozSystemGroup: true });
-    this.element.removeEventListener("transitionend", this, { mozSystemGroup: true });
+    this.element.removeEventListener("transitionend", this, {
+      mozSystemGroup: true,
+    });
     this.element = null;
     this.actor = null;
     this.mut.disconnect();
@@ -91,7 +107,9 @@ this.SelectContentHelper.prototype = {
     let rect = this._getBoundingContentRect();
     let computedStyles = getComputedStyles(this.element);
     let options = this._buildOptionList();
-    let defaultStyles = this.element.ownerGlobal.getDefaultComputedStyle(this.element);
+    let defaultStyles = this.element.ownerGlobal.getDefaultComputedStyle(
+      this.element
+    );
     this.actor.sendAsyncMessage("Forms:ShowDropDown", {
       isOpenedViaTouch: this.isOpenedViaTouch,
       options,
@@ -112,7 +130,9 @@ this.SelectContentHelper.prototype = {
     // any styles.
     this._pseudoStylesSetup = true;
     InspectorUtils.addPseudoClassLock(this.element, ":focus");
-    let lockedDescendants = this._lockedDescendants = this.element.querySelectorAll(":checked");
+    let lockedDescendants = (this._lockedDescendants = this.element.querySelectorAll(
+      ":checked"
+    ));
     for (let child of lockedDescendants) {
       // Selected options have the :checked pseudo-class, which
       // we want to disable before calculating the computed
@@ -158,7 +178,9 @@ this.SelectContentHelper.prototype = {
     // have :focus, though it is here for belt-and-suspenders.
     this._setupPseudoClassStyles();
     let computedStyles = getComputedStyles(this.element);
-    let defaultStyles = this.element.ownerGlobal.getDefaultComputedStyle(this.element);
+    let defaultStyles = this.element.ownerGlobal.getDefaultComputedStyle(
+      this.element
+    );
     this.actor.sendAsyncMessage("Forms:UpdateDropDown", {
       options: this._buildOptionList(),
       selectedIndex: this.element.selectedIndex,
@@ -206,8 +228,11 @@ this.SelectContentHelper.prototype = {
         }
 
         // Clear active document no matter user selects via keyboard or mouse
-          InspectorUtils.removeContentState(this.element, kStateActive,
+        InspectorUtils.removeContentState(
-                                            /* aClearActiveDocument */ true);
+          this.element,
+          kStateActive,
+          /* aClearActiveDocument */ true
+        );
 
         // Fire input and change events when selected option changes
         if (this.initialSelection !== selectedOption) {
@@ -342,8 +367,7 @@ function buildOptionListForChildren(node, uniqueStyles) {
       }
 
       let textContent =
-        tagName == "OPTGROUP" ? child.getAttribute("label")
+        tagName == "OPTGROUP" ? child.getAttribute("label") : child.text;
-                              : child.text;
       if (textContent == null) {
         textContent = "";
       }
@@ -356,7 +380,8 @@ function buildOptionListForChildren(node, uniqueStyles) {
         disabled: child.disabled,
         display: cs.display,
         tooltip: child.title,
-        children: tagName == "OPTGROUP"
+        children:
+          tagName == "OPTGROUP"
             ? buildOptionListForChildren(child, uniqueStyles)
             : [],
         // Most options have the same style. In order to reduce the size of the
@@ -370,7 +395,6 @@ function buildOptionListForChildren(node, uniqueStyles) {
   return result;
 }
 
-
 // Hold the instance of SelectContentHelper created
 // when the dropdown list is opened. This variable helps
 // re-route the received message from SelectChild to SelectContentHelper object.
@@ -389,16 +413,22 @@ class SelectChild extends JSWindowActorChild {
     }
 
     switch (event.type) {
-      case "mozshowdropdown":
+      case "mozshowdropdown": {
-        {
+        let contentHelper = new SelectContentHelper(
-          let contentHelper = new SelectContentHelper(event.target, {isOpenedViaTouch: false}, this);
+          event.target,
+          { isOpenedViaTouch: false },
+          this
+        );
         currentSelectContentHelper.set(this, contentHelper);
         break;
       }
 
-      case "mozshowdropdown-sourcetouch":
+      case "mozshowdropdown-sourcetouch": {
-        {
+        let contentHelper = new SelectContentHelper(
-          let contentHelper = new SelectContentHelper(event.target, {isOpenedViaTouch: true}, this);
+          event.target,
+          { isOpenedViaTouch: true },
+          this
+        );
         currentSelectContentHelper.set(this, contentHelper);
         break;
       }

toolkit/actors/SelectParent.jsm

@@ -4,13 +4,12 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
-var EXPORTED_SYMBOLS = [
+var EXPORTED_SYMBOLS = ["SelectParent", "SelectParentHelper"];
-  "SelectParent",
-  "SelectParentHelper",
-];
 
-const {AppConstants} = ChromeUtils.import("resource://gre/modules/AppConstants.jsm");
+const { AppConstants } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/AppConstants.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 // Maximum number of rows to display in the select dropdown.
 const MAX_ROWS = 20;
@@ -25,7 +24,9 @@ const PROPERTIES_RESET_WHEN_ACTIVE = [
   "text-shadow",
 ];
 
-const customStylingEnabled = Services.prefs.getBoolPref("dom.forms.select.customstyling");
+const customStylingEnabled = Services.prefs.getBoolPref(
+  "dom.forms.select.customstyling"
+);
 
 var SelectParentHelper = {
   /**
@@ -59,8 +60,15 @@ var SelectParentHelper = {
    * FIXME(emilio, bug 1530709): At the very least we should use CSSOM to avoid
    * trusting the IPC message too much.
    */
-  populate(menulist, items, uniqueItemStyles, selectedIndex, zoom,
+  populate(
-            uaStyle, selectStyle) {
+    menulist,
+    items,
+    uniqueItemStyles,
+    selectedIndex,
+    zoom,
+    uaStyle,
+    selectStyle
+  ) {
     // Clear the current contents of the popup
     menulist.menupopup.textContent = "";
     let stylesheet = menulist.querySelector("#ContentSelectDropdownStylesheet");
@@ -88,8 +96,10 @@ var SelectParentHelper = {
 
     // Some webpages set the <select> backgroundColor to transparent,
     // but they don't intend to change the popup to transparent.
-    if (customStylingEnabled &&
+    if (
-        selectStyle["background-color"] != uaStyle["background-color"]) {
+      customStylingEnabled &&
+      selectStyle["background-color"] != uaStyle["background-color"]
+    ) {
       let color = selectStyle["background-color"];
       selectStyle["background-image"] = `linear-gradient(${color}, ${color});`;
       selectBackgroundSet = true;
@@ -101,26 +111,36 @@ var SelectParentHelper = {
 
     if (customStylingEnabled) {
       if (selectStyle["text-shadow"] != "none") {
-        sheet.insertRule(`#ContentSelectDropdown > menupopup > [_moz-menuactive="true"] {
+        sheet.insertRule(
+          `#ContentSelectDropdown > menupopup > [_moz-menuactive="true"] {
           text-shadow: none;
-        }`, 0);
+        }`,
+          0
+        );
       }
 
       let ruleBody = "";
       for (let property in selectStyle) {
-        if (property == "background-color" || property == "direction")
+        if (property == "background-color" || property == "direction") {
-          continue; // Handled above, or before.
+          continue;
+        } // Handled above, or before.
         if (selectStyle[property] != uaStyle[property]) {
           ruleBody += `${property}: ${selectStyle[property]};`;
         }
       }
       if (ruleBody) {
-        sheet.insertRule(`#ContentSelectDropdown > menupopup {
+        sheet.insertRule(
+          `#ContentSelectDropdown > menupopup {
           ${ruleBody}
-        }`, 0);
+        }`,
-        sheet.insertRule(`#ContentSelectDropdown > menupopup > :not([_moz-menuactive="true"]) {
+          0
+        );
+        sheet.insertRule(
+          `#ContentSelectDropdown > menupopup > :not([_moz-menuactive="true"]) {
             color: inherit;
-        }`, 0);
+        }`,
+          0
+        );
       }
     }
 
@@ -135,8 +155,16 @@ var SelectParentHelper = {
 
     this._currentZoom = zoom;
     this._currentMenulist = menulist;
-    this.populateChildren(menulist, items, uniqueItemStyles, selectedIndex, zoom,
+    this.populateChildren(
-                      selectStyle, selectBackgroundSet, sheet);
+      menulist,
+      items,
+      uniqueItemStyles,
+      selectedIndex,
+      zoom,
+      selectStyle,
+      selectBackgroundSet,
+      sheet
+    );
   },
 
   open(browser, menulist, rect, isOpenedViaTouch, selectParentActor) {
@@ -161,23 +189,37 @@ var SelectParentHelper = {
 
       // Include the padding and border on the popup.
       let cs = win.getComputedStyle(menupopup);
-      let bpHeight = parseFloat(cs.borderTopWidth) + parseFloat(cs.borderBottomWidth) +
+      let bpHeight =
-                      parseFloat(cs.paddingTop) + parseFloat(cs.paddingBottom);
+        parseFloat(cs.borderTopWidth) +
-      menupopup.style.maxHeight = (itemHeight * MAX_ROWS + bpHeight) + "px";
+        parseFloat(cs.borderBottomWidth) +
+        parseFloat(cs.paddingTop) +
+        parseFloat(cs.paddingBottom);
+      menupopup.style.maxHeight = itemHeight * MAX_ROWS + bpHeight + "px";
     }
 
     menupopup.classList.toggle("isOpenedViaTouch", isOpenedViaTouch);
 
     if (browser.getAttribute("selectmenuconstrained") != "false") {
       let constraintRect = browser.getBoundingClientRect();
-      constraintRect = new win.DOMRect(constraintRect.left + win.mozInnerScreenX,
+      constraintRect = new win.DOMRect(
+        constraintRect.left + win.mozInnerScreenX,
         constraintRect.top + win.mozInnerScreenY,
-                                        constraintRect.width, constraintRect.height);
+        constraintRect.width,
+        constraintRect.height
+      );
       menupopup.setConstraintRect(constraintRect);
     } else {
       menupopup.setConstraintRect(new win.DOMRect(0, 0, 0, 0));
     }
-    menupopup.openPopupAtScreenRect(AppConstants.platform == "macosx" ? "selection" : "after_start", rect.left, rect.top, rect.width, rect.height, false, false);
+    menupopup.openPopupAtScreenRect(
+      AppConstants.platform == "macosx" ? "selection" : "after_start",
+      rect.left,
+      rect.top,
+      rect.width,
+      rect.height,
+      false,
+      false
+    );
   },
 
   hide(menulist, browser) {
@@ -190,12 +232,20 @@ var SelectParentHelper = {
     switch (event.type) {
       case "mouseup":
         function inRect(rect, x, y) {
-          return x >= rect.left && x <= rect.left + rect.width && y >= rect.top && y <= rect.top + rect.height;
+          return (
+            x >= rect.left &&
+            x <= rect.left + rect.width &&
+            y >= rect.top &&
+            y <= rect.top + rect.height
+          );
         }
 
-        let x = event.screenX, y = event.screenY;
+        let x = event.screenX,
-        let onAnchor = !inRect(this._currentMenulist.menupopup.getOuterScreenRect(), x, y) &&
+          y = event.screenY;
-                        inRect(this._selectRect, x, y) && this._currentMenulist.menupopup.state == "open";
+        let onAnchor =
+          !inRect(this._currentMenulist.menupopup.getOuterScreenRect(), x, y) &&
+          inRect(this._selectRect, x, y) &&
+          this._currentMenulist.menupopup.state == "open";
         this._actor.sendAsyncMessage("Forms:MouseUp", { onAnchor });
         break;
 
@@ -260,9 +310,15 @@ var SelectParentHelper = {
 
       let options = msg.data.options;
       let selectedIndex = msg.data.selectedIndex;
-      this.populate(this._currentMenulist, options.options, options.uniqueStyles,
+      this.populate(
-                    selectedIndex, this._currentZoom, msg.data.defaultStyle,
+        this._currentMenulist,
-                    msg.data.style);
+        options.options,
+        options.uniqueStyles,
+        selectedIndex,
+        this._currentZoom,
+        msg.data.defaultStyle,
+        msg.data.style
+      );
 
       // Restore scroll position to what it was prior to the update.
       scrollBox.scrollTop = scrollTop;
@@ -315,21 +371,34 @@ var SelectParentHelper = {
    *
    * FIXME(emilio): Again, using a stylesheet + :nth-child is not really efficient.
    */
-  populateChildren(menulist, options, uniqueOptionStyles, selectedIndex,
+  populateChildren(
-                            zoom, selectStyle, selectBackgroundSet, sheet,
+    menulist,
-                            parentElement = null, isGroupDisabled = false,
+    options,
-                            addSearch = true, nthChildIndex = 1) {
+    uniqueOptionStyles,
+    selectedIndex,
+    zoom,
+    selectStyle,
+    selectBackgroundSet,
+    sheet,
+    parentElement = null,
+    isGroupDisabled = false,
+    addSearch = true,
+    nthChildIndex = 1
+  ) {
     let element = menulist.menupopup;
 
     for (let option of options) {
-      let isOptGroup = (option.tagName == "OPTGROUP");
+      let isOptGroup = option.tagName == "OPTGROUP";
-      let item = element.ownerDocument.createXULElement(isOptGroup ? "menucaption" : "menuitem");
+      let item = element.ownerDocument.createXULElement(
+        isOptGroup ? "menucaption" : "menuitem"
+      );
       let style = uniqueOptionStyles[option.styleIndex];
 
       item.setAttribute("label", option.textContent);
       item.style.direction = style.direction;
-      item.style.fontSize = (zoom * parseFloat(style["font-size"], 10)) + "px";
+      item.style.fontSize = zoom * parseFloat(style["font-size"], 10) + "px";
-      item.hidden = option.display == "none" || (parentElement && parentElement.hidden);
+      item.hidden =
+        option.display == "none" || (parentElement && parentElement.hidden);
       // Keep track of which options are hidden by page content, so we can avoid showing
       // them on search input
       item.hiddenByContent = item.hidden;
@@ -339,7 +408,8 @@ var SelectParentHelper = {
         style["background-color"] = selectStyle["background-color"];
       }
 
-      let optionBackgroundSet = style["background-color"] != selectStyle["background-color"];
+      let optionBackgroundSet =
+        style["background-color"] != selectStyle["background-color"];
 
       if (style.color == style["background-color"]) {
         style.color = selectStyle.color;
@@ -348,10 +418,12 @@ var SelectParentHelper = {
       if (customStylingEnabled) {
         let ruleBody = "";
         for (let property in style) {
-          if (property == "direction" || property == "font-size")
+          if (property == "direction" || property == "font-size") {
-            continue; // handled above
-          if (style[property] == selectStyle[property])
             continue;
+          } // handled above
+          if (style[property] == selectStyle[property]) {
+            continue;
+          }
           if (PROPERTIES_RESET_WHEN_ACTIVE.includes(property)) {
             ruleBody += `${property}: ${style[property]};`;
           } else {
@@ -360,23 +432,34 @@ var SelectParentHelper = {
         }
 
         if (ruleBody) {
-          sheet.insertRule(`#ContentSelectDropdown > menupopup > :nth-child(${nthChildIndex}):not([_moz-menuactive="true"]) {
+          sheet.insertRule(
+            `#ContentSelectDropdown > menupopup > :nth-child(${nthChildIndex}):not([_moz-menuactive="true"]) {
             ${ruleBody}
-          }`, 0);
+          }`,
+            0
+          );
 
-          if (style["text-shadow"] != "none" &&
+          if (
-              style["text-shadow"] != selectStyle["text-shadow"]) {
+            style["text-shadow"] != "none" &&
+            style["text-shadow"] != selectStyle["text-shadow"]
+          ) {
             // Need to explicitly disable the possibly inherited
             // text-shadow rule when _moz-menuactive=true since
             // _moz-menuactive=true disables custom option styling.
-            sheet.insertRule(`#ContentSelectDropdown > menupopup > :nth-child(${nthChildIndex})[_moz-menuactive="true"] {
+            sheet.insertRule(
+              `#ContentSelectDropdown > menupopup > :nth-child(${nthChildIndex})[_moz-menuactive="true"] {
               text-shadow: none;
-            }`, 0);
+            }`,
+              0
+            );
           }
         }
       }
 
-      if (customStylingEnabled && (optionBackgroundSet || selectBackgroundSet)) {
+      if (
+        customStylingEnabled &&
+        (optionBackgroundSet || selectBackgroundSet)
+      ) {
         item.setAttribute("customoptionstyling", "true");
       } else {
         item.removeAttribute("customoptionstyling");
@@ -392,11 +475,20 @@ var SelectParentHelper = {
       }
 
       if (isOptGroup) {
-        nthChildIndex =
+        nthChildIndex = this.populateChildren(
-          this.populateChildren(menulist, option.children, uniqueOptionStyles,
+          menulist,
-                            selectedIndex, zoom, selectStyle,
+          option.children,
-                            selectBackgroundSet, sheet, item, isDisabled, false,
+          uniqueOptionStyles,
-                            nthChildIndex);
+          selectedIndex,
+          zoom,
+          selectStyle,
+          selectBackgroundSet,
+          sheet,
+          item,
+          isDisabled,
+          false,
+          nthChildIndex
+        );
       } else {
         if (option.index == selectedIndex) {
           // We expect the parent element of the popup to be a <xul:menulist> that
@@ -424,22 +516,32 @@ var SelectParentHelper = {
 
     // Check if search pref is enabled, if this is the first time iterating through
     // the dropdown, and if the list is long enough for a search element to be added.
-    if (Services.prefs.getBoolPref("dom.forms.selectSearch") && addSearch
+    if (
-        && element.childElementCount > SEARCH_MINIMUM_ELEMENTS) {
+      Services.prefs.getBoolPref("dom.forms.selectSearch") &&
+      addSearch &&
+      element.childElementCount > SEARCH_MINIMUM_ELEMENTS
+    ) {
       // Add a search text field as the first element of the dropdown
       let searchbox = element.ownerDocument.createXULElement("textbox", {
         is: "search-textbox",
       });
       searchbox.className = "contentSelectDropdown-searchbox";
       searchbox.addEventListener("input", this.onSearchInput);
-      searchbox.inputField.addEventListener("focus", this.onSearchFocus.bind(this));
+      searchbox.inputField.addEventListener(
+        "focus",
+        this.onSearchFocus.bind(this)
+      );
       searchbox.inputField.addEventListener("blur", this.onSearchBlur);
       searchbox.addEventListener("command", this.onSearchInput);
 
       // Handle special keys for exiting search
-      searchbox.addEventListener("keydown", (event) => {
+      searchbox.addEventListener(
+        "keydown",
+        event => {
           this.onSearchKeydown(event, menulist);
-      }, true);
+        },
+        true
+      );
 
       element.insertBefore(searchbox, element.children[0]);
     }
@@ -461,13 +563,17 @@ var SelectParentHelper = {
       case "Enter":
       case "Tab":
         searchbox.blur();
-        if (searchbox.nextElementSibling.localName == "menuitem" &&
+        if (
-            !searchbox.nextElementSibling.hidden) {
+          searchbox.nextElementSibling.localName == "menuitem" &&
+          !searchbox.nextElementSibling.hidden
+        ) {
           menulist.activeChild = searchbox.nextElementSibling;
         } else {
           let currentOption = searchbox.nextElementSibling;
-          while (currentOption && (currentOption.localName != "menuitem" ||
+          while (
-                currentOption.hidden)) {
+            currentOption &&
+            (currentOption.localName != "menuitem" || currentOption.hidden)
+          ) {
             currentOption = currentOption.nextElementSibling;
           }
           if (currentOption) {
@@ -517,8 +623,12 @@ var SelectParentHelper = {
           prevCaption = currentItem;
           allHidden = true;
         } else {
-          if (!currentItem.classList.contains("contentSelectDropdown-ingroup") &&
+          if (
-              currentItem.previousElementSibling.classList.contains("contentSelectDropdown-ingroup")) {
+            !currentItem.classList.contains("contentSelectDropdown-ingroup") &&
+            currentItem.previousElementSibling.classList.contains(
+              "contentSelectDropdown-ingroup"
+            )
+          ) {
             if (prevCaption != null) {
               prevCaption.hidden = allHidden;
             }
@@ -557,8 +667,7 @@ var SelectParentHelper = {
 class SelectParent extends JSWindowActorParent {
   receiveMessage(message) {
     switch (message.name) {
-      case "Forms:ShowDropDown":
+      case "Forms:ShowDropDown": {
-      {
         let topBrowsingContext = this.manager.browsingContext.top;
         let browser = topBrowsingContext.embedderElement;
 
@@ -567,7 +676,9 @@ class SelectParent extends JSWindowActorParent {
         }
 
         let document = browser.ownerDocument;
-        let menulist = document.getElementById(browser.getAttribute("selectmenulist"));
+        let menulist = document.getElementById(
+          browser.getAttribute("selectmenulist")
+        );
 
         if (!this._menulist) {
           // Cache the menulist to have access to it
@@ -578,20 +689,32 @@ class SelectParent extends JSWindowActorParent {
         let data = message.data;
         menulist.menupopup.style.direction = data.style.direction;
 
-        let useFullZoom = !browser.isRemoteBrowser ||
+        let useFullZoom =
+          !browser.isRemoteBrowser ||
           Services.prefs.getBoolPref("browser.zoom.full") ||
           browser.isSyntheticDocument;
         let zoom = useFullZoom ? browser._fullZoom : browser._textZoom;
 
-        SelectParentHelper.populate(menulist, data.options.options,
+        SelectParentHelper.populate(
-          data.options.uniqueStyles, data.selectedIndex, zoom,
+          menulist,
-          data.defaultStyle, data.style);
+          data.options.options,
-        SelectParentHelper.open(browser, menulist, data.rect, data.isOpenedViaTouch, this);
+          data.options.uniqueStyles,
+          data.selectedIndex,
+          zoom,
+          data.defaultStyle,
+          data.style
+        );
+        SelectParentHelper.open(
+          browser,
+          menulist,
+          data.rect,
+          data.isOpenedViaTouch,
+          this
+        );
         break;
       }
 
-      case "Forms:HideDropDown":
+      case "Forms:HideDropDown": {
-        {
         let topBrowsingContext = this.manager.browsingContext.top;
         let browser = topBrowsingContext.embedderElement;
         SelectParentHelper.hide(this._menulist, browser);

toolkit/actors/SelectionSourceChild.jsm

@@ -5,8 +5,10 @@
 
 var EXPORTED_SYMBOLS = ["SelectionSourceChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 class SelectionSourceChild extends ActorChild {
   receiveMessage(message) {
@@ -17,7 +19,10 @@ class SelectionSourceChild extends ActorChild {
       try {
         selectionDetails = this.getSelection(global);
       } finally {
-        global.sendAsyncMessage("ViewSource:GetSelectionDone", selectionDetails);
+        global.sendAsyncMessage(
+          "ViewSource:GetSelectionDone",
+          selectionDetails
+        );
       }
     }
   }
@@ -30,11 +35,13 @@ class SelectionSourceChild extends ActorChild {
   getPath(ancestor, node) {
     var n = node;
     var p = n.parentNode;
-    if (n == ancestor || !p)
+    if (n == ancestor || !p) {
       return null;
+    }
     var path = [];
-    if (!path)
+    if (!path) {
       return null;
+    }
     do {
       for (var i = 0; i < p.childNodes.length; i++) {
         if (p.childNodes.item(i) == n) {
@@ -49,7 +56,7 @@ class SelectionSourceChild extends ActorChild {
   }
 
   getSelection(global) {
-    const {content} = global;
+    const { content } = global;
 
     // These are markers used to delimit the selection during processing. They
     // are removed from the final rendering.
@@ -73,16 +80,20 @@ class SelectionSourceChild extends ActorChild {
 
     // let the ancestor be an element
     var Node = doc.defaultView.Node;
-    if (ancestorContainer.nodeType == Node.TEXT_NODE ||
+    if (
-        ancestorContainer.nodeType == Node.CDATA_SECTION_NODE)
+      ancestorContainer.nodeType == Node.TEXT_NODE ||
+      ancestorContainer.nodeType == Node.CDATA_SECTION_NODE
+    ) {
       ancestorContainer = ancestorContainer.parentNode;
+    }
 
     // for selectAll, let's use the entire document, including <html>...</html>
     // @see nsDocumentViewer::SelectAll() for how selectAll is implemented
     try {
-      if (ancestorContainer == doc.body)
+      if (ancestorContainer == doc.body) {
         ancestorContainer = doc.documentElement;
-    } catch (e) { }
+      }
+    } catch (e) {}
 
     // each path is a "child sequence" (a.k.a. "tumbler") that
     // descends from the ancestor down to the boundary point
@@ -95,10 +106,14 @@ class SelectionSourceChild extends ActorChild {
     // loading and the like.  The use of importNode here, as opposed to adoptNode,
     // is _very_ important.
     // XXXbz wish there were a less hacky way to create an untrusted document here
-    var isHTML = (doc.createElement("div").tagName == "DIV");
+    var isHTML = doc.createElement("div").tagName == "DIV";
-    var dataDoc = isHTML ?
+    var dataDoc = isHTML
-      ancestorContainer.ownerDocument.implementation.createHTMLDocument("") :
+      ? ancestorContainer.ownerDocument.implementation.createHTMLDocument("")
-      ancestorContainer.ownerDocument.implementation.createDocument("", "", null);
+      : ancestorContainer.ownerDocument.implementation.createDocument(
+          "",
+          "",
+          null
+        );
     ancestorContainer = dataDoc.importNode(ancestorContainer, true);
     startContainer = ancestorContainer;
     endContainer = ancestorContainer;
@@ -121,51 +136,75 @@ class SelectionSourceChild extends ActorChild {
       // note: |startOffset| and |endOffset| are interpreted either as
       // offsets in the text data or as child indices (see the Range spec)
       // (here, munging the end point first to keep the start point safe...)
-      if (endContainer.nodeType == Node.TEXT_NODE ||
+      if (
-          endContainer.nodeType == Node.CDATA_SECTION_NODE) {
+        endContainer.nodeType == Node.TEXT_NODE ||
+        endContainer.nodeType == Node.CDATA_SECTION_NODE
+      ) {
         // do some extra tweaks to try to avoid the view-source output to look like
         // ...<tag>]... or ...]</tag>... (where ']' marks the end of the selection).
         // To get a neat output, the idea here is to remap the end point from:
         // 1. ...<tag>]...   to   ...]<tag>...
         // 2. ...]</tag>...  to   ...</tag>]...
-        if ((endOffset > 0 && endOffset < endContainer.data.length) ||
+        if (
-            !endContainer.parentNode || !endContainer.parentNode.parentNode) {
+          (endOffset > 0 && endOffset < endContainer.data.length) ||
+          !endContainer.parentNode ||
+          !endContainer.parentNode.parentNode
+        ) {
           endContainer.insertData(endOffset, MARK_SELECTION_END);
         } else {
           tmpNode = dataDoc.createTextNode(MARK_SELECTION_END);
           endContainer = endContainer.parentNode;
-          if (endOffset === 0)
+          if (endOffset === 0) {
             endContainer.parentNode.insertBefore(tmpNode, endContainer);
-          else
+          } else {
-            endContainer.parentNode.insertBefore(tmpNode, endContainer.nextSibling);
+            endContainer.parentNode.insertBefore(
+              tmpNode,
+              endContainer.nextSibling
+            );
+          }
         }
       } else {
         tmpNode = dataDoc.createTextNode(MARK_SELECTION_END);
-        endContainer.insertBefore(tmpNode, endContainer.childNodes.item(endOffset));
+        endContainer.insertBefore(
+          tmpNode,
+          endContainer.childNodes.item(endOffset)
+        );
       }
 
-      if (startContainer.nodeType == Node.TEXT_NODE ||
+      if (
-          startContainer.nodeType == Node.CDATA_SECTION_NODE) {
+        startContainer.nodeType == Node.TEXT_NODE ||
+        startContainer.nodeType == Node.CDATA_SECTION_NODE
+      ) {
         // do some extra tweaks to try to avoid the view-source output to look like
         // ...<tag>[... or ...[</tag>... (where '[' marks the start of the selection).
         // To get a neat output, the idea here is to remap the start point from:
         // 1. ...<tag>[...   to   ...[<tag>...
         // 2. ...[</tag>...  to   ...</tag>[...
-        if ((startOffset > 0 && startOffset < startContainer.data.length) ||
+        if (
-            !startContainer.parentNode || !startContainer.parentNode.parentNode ||
+          (startOffset > 0 && startOffset < startContainer.data.length) ||
-            startContainer != startContainer.parentNode.lastChild) {
+          !startContainer.parentNode ||
+          !startContainer.parentNode.parentNode ||
+          startContainer != startContainer.parentNode.lastChild
+        ) {
           startContainer.insertData(startOffset, MARK_SELECTION_START);
         } else {
           tmpNode = dataDoc.createTextNode(MARK_SELECTION_START);
           startContainer = startContainer.parentNode;
-          if (startOffset === 0)
+          if (startOffset === 0) {
             startContainer.parentNode.insertBefore(tmpNode, startContainer);
-          else
+          } else {
-            startContainer.parentNode.insertBefore(tmpNode, startContainer.nextSibling);
+            startContainer.parentNode.insertBefore(
+              tmpNode,
+              startContainer.nextSibling
+            );
+          }
         }
       } else {
         tmpNode = dataDoc.createTextNode(MARK_SELECTION_START);
-        startContainer.insertBefore(tmpNode, startContainer.childNodes.item(startOffset));
+        startContainer.insertBefore(
+          tmpNode,
+          startContainer.childNodes.item(startOffset)
+        );
       }
     }
 
@@ -173,11 +212,15 @@ class SelectionSourceChild extends ActorChild {
     tmpNode = dataDoc.createElementNS("http://www.w3.org/1999/xhtml", "div");
     tmpNode.appendChild(ancestorContainer);
 
-    return { uri: (isHTML ? "view-source:data:text/html;charset=utf-8," :
+    return {
-                            "view-source:data:application/xml;charset=utf-8,")
+      uri:
-                  + encodeURIComponent(tmpNode.innerHTML),
+        (isHTML
+          ? "view-source:data:text/html;charset=utf-8,"
+          : "view-source:data:application/xml;charset=utf-8,") +
+        encodeURIComponent(tmpNode.innerHTML),
       drawSelection: canDrawSelection,
-             baseURI: doc.baseURI };
+      baseURI: doc.baseURI,
+    };
   }
 
   get wrapLongLines() {

toolkit/actors/TestChild.jsm

@@ -4,7 +4,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 var EXPORTED_SYMBOLS = ["TestChild"];
 
@@ -20,7 +20,7 @@ class TestChild extends JSWindowActorChild {
         this.sendAsyncMessage("toParent", aMessage.data);
         break;
       case "asyncAdd":
-        let {a, b} = aMessage.data;
+        let { a, b } = aMessage.data;
         return new Promise(resolve => {
           resolve({ result: a + b });
         });
@@ -37,7 +37,7 @@ class TestChild extends JSWindowActorChild {
   }
 
   observe(subject, topic, data) {
-    this.lastObserved = {subject, topic, data};
+    this.lastObserved = { subject, topic, data };
   }
 
   show() {
@@ -46,11 +46,13 @@ class TestChild extends JSWindowActorChild {
 
   willDestroy() {
     Services.obs.notifyObservers(
-      this, "test-js-window-actor-willdestroy", true);
+      this,
+      "test-js-window-actor-willdestroy",
+      true
+    );
   }
 
   didDestroy() {
-    Services.obs.notifyObservers(
+    Services.obs.notifyObservers(this, "test-js-window-actor-diddestroy", true);
-      this, "test-js-window-actor-diddestroy", true);
   }
 }

toolkit/actors/TestParent.jsm

@@ -4,7 +4,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 var EXPORTED_SYMBOLS = ["TestParent"];
 
@@ -25,12 +25,15 @@ class TestParent extends JSWindowActorParent {
         this.sendAsyncMessage("done", aMessage.data);
         break;
       case "asyncMul":
-        let {a, b} = aMessage.data;
+        let { a, b } = aMessage.data;
         return { result: a * b };
 
       case "event":
         Services.obs.notifyObservers(
-          this, "test-js-window-actor-parent-event", aMessage.data.type);
+          this,
+          "test-js-window-actor-parent-event",
+          aMessage.data.type
+        );
         break;
     }
 

toolkit/actors/ThumbnailsChild.jsm

@@ -6,11 +6,16 @@
 
 var EXPORTED_SYMBOLS = ["ThumbnailsChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
-ChromeUtils.defineModuleGetter(this, "PageThumbUtils",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/PageThumbUtils.jsm");
+  this,
+  "PageThumbUtils",
+  "resource://gre/modules/PageThumbUtils.jsm"
+);
 
 class ThumbnailsChild extends ActorChild {
   receiveMessage(message) {
@@ -22,16 +27,23 @@ class ThumbnailsChild extends ActorChild {
       let args = message.data.additionalArgs;
       let fullScale = args ? args.fullScale : false;
       if (fullScale) {
-        snapshot = PageThumbUtils.createSnapshotThumbnail(this.content, null, args);
+        snapshot = PageThumbUtils.createSnapshotThumbnail(
+          this.content,
+          null,
+          args
+        );
       } else {
         let snapshotWidth = message.data.canvasWidth;
         let snapshotHeight = message.data.canvasHeight;
-        snapshot =
+        snapshot = PageThumbUtils.createCanvas(
-          PageThumbUtils.createCanvas(this.content, snapshotWidth, snapshotHeight);
+          this.content,
+          snapshotWidth,
+          snapshotHeight
+        );
         PageThumbUtils.createSnapshotThumbnail(this.content, snapshot, args);
       }
 
-      snapshot.toBlob((aBlob) => {
+      snapshot.toBlob(aBlob => {
         this.mm.sendAsyncMessage("Browser:Thumbnail:Response", {
           thumbnail: aBlob,
           id: message.data.id,
@@ -42,7 +54,10 @@ class ThumbnailsChild extends ActorChild {
        * Remote isSafeForCapture request handler for PageThumbs.
        */
       Services.tm.idleDispatchToMainThread(() => {
-        let result = PageThumbUtils.shouldStoreContentThumbnail(this.content, this.mm.docShell);
+        let result = PageThumbUtils.shouldStoreContentThumbnail(
+          this.content,
+          this.mm.docShell
+        );
         this.mm.sendAsyncMessage("Browser:Thumbnail:CheckState:Response", {
           result,
         });

toolkit/actors/UAWidgetsChild.jsm

@@ -1,21 +1,17 @@
 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
 var EXPORTED_SYMBOLS = ["UAWidgetsChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
-const HANDLED_ELEMENTS = [
+const HANDLED_ELEMENTS = ["video", "audio", "embed", "object", "marquee"];
-  "video",
-  "audio",
-  "embed",
-  "object",
-  "marquee",
-];
 
 class UAWidgetsChild extends ActorChild {
   constructor(dispatcher) {
@@ -83,25 +79,33 @@ class UAWidgetsChild extends ActorChild {
     }
 
     if (!uri || !widgetName) {
-      Cu.reportError("Getting a UAWidgetSetupOrChange event on undefined element.");
+      Cu.reportError(
+        "Getting a UAWidgetSetupOrChange event on undefined element."
+      );
       return;
     }
 
     let shadowRoot = aElement.openOrClosedShadowRoot;
     if (!shadowRoot) {
-      Cu.reportError("Getting a UAWidgetSetupOrChange event without the Shadow Root.");
+      Cu.reportError(
+        "Getting a UAWidgetSetupOrChange event without the Shadow Root."
+      );
       return;
     }
 
     let isSystemPrincipal = aElement.nodePrincipal.isSystemPrincipal;
-    let sandbox = isSystemPrincipal ?
+    let sandbox = isSystemPrincipal
-      Object.create(null) : Cu.getUAWidgetScope(aElement.nodePrincipal);
+      ? Object.create(null)
+      : Cu.getUAWidgetScope(aElement.nodePrincipal);
 
     if (!sandbox[widgetName]) {
       Services.scriptloader.loadSubScript(uri, sandbox);
     }
 
-    let prefs = Cu.cloneInto(this.getPrefsForUAWidget(widgetName, prefKeys), sandbox);
+    let prefs = Cu.cloneInto(
+      this.getPrefsForUAWidget(widgetName, prefKeys),
+      sandbox
+    );
 
     let widget = new sandbox[widgetName](shadowRoot, prefs);
     if (!isSystemPrincipal) {

toolkit/actors/UAWidgetsDateTimeBoxChild.jsm

@@ -1,12 +1,12 @@
 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
-* License, v. 2.0. If a copy of the MPL was not distributed with this
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
-* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
 var EXPORTED_SYMBOLS = ["UAWidgetsDateTimeBoxChild"];
 
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 const HANDLED_ELEMENTS = ["input"];
 
@@ -62,25 +62,33 @@ class UAWidgetsDateTimeBoxChild extends JSWindowActorChild {
     }
 
     if (!uri || !widgetName) {
-      Cu.reportError("Getting a UAWidgetSetupOrChange event on undefined element.");
+      Cu.reportError(
+        "Getting a UAWidgetSetupOrChange event on undefined element."
+      );
       return;
     }
 
     let shadowRoot = aElement.openOrClosedShadowRoot;
     if (!shadowRoot) {
-      Cu.reportError("Getting a UAWidgetSetupOrChange event without the Shadow Root.");
+      Cu.reportError(
+        "Getting a UAWidgetSetupOrChange event without the Shadow Root."
+      );
       return;
     }
 
     let isSystemPrincipal = aElement.nodePrincipal.isSystemPrincipal;
-    let sandbox = isSystemPrincipal ?
+    let sandbox = isSystemPrincipal
-      Object.create(null) : Cu.getUAWidgetScope(aElement.nodePrincipal);
+      ? Object.create(null)
+      : Cu.getUAWidgetScope(aElement.nodePrincipal);
 
     if (!sandbox[widgetName]) {
       Services.scriptloader.loadSubScript(uri, sandbox);
     }
 
-    let prefs = Cu.cloneInto(this.getPrefsForUAWidget(widgetName, prefKeys), sandbox);
+    let prefs = Cu.cloneInto(
+      this.getPrefsForUAWidget(widgetName, prefKeys),
+      sandbox
+    );
 
     let widget = new sandbox[widgetName](shadowRoot, prefs);
     if (!isSystemPrincipal) {

toolkit/actors/UnselectedTabHoverChild.jsm

@@ -6,17 +6,23 @@
 
 var EXPORTED_SYMBOLS = ["UnselectedTabHoverChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 class UnselectedTabHoverChild extends ActorChild {
   receiveMessage(message) {
-    Services.obs.notifyObservers(this.content, "unselected-tab-hover",
+    Services.obs.notifyObservers(
-                                 message.data.hovered);
+      this.content,
+      "unselected-tab-hover",
+      message.data.hovered
+    );
   }
 
   handleEvent(event) {
-    this.mm.sendAsyncMessage("UnselectedTabHover:Toggle",
+    this.mm.sendAsyncMessage("UnselectedTabHover:Toggle", {
-                             { enable: event.type == "UnselectedTabHover:Enable" });
+      enable: event.type == "UnselectedTabHover:Enable",
+    });
   }
 }

toolkit/actors/WebChannelChild.jsm

@@ -7,8 +7,10 @@
 
 var EXPORTED_SYMBOLS = ["WebChannelChild"];
 
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
+  "resource://gre/modules/ActorChild.jsm"
+);
 
 function getMessageManager(event) {
   let window = Cu.getGlobalForObject(event.target);
@@ -46,14 +48,17 @@ class WebChannelChild extends ActorChild {
     if (whitelist != _lastWhitelistValue) {
       let urls = whitelist.split(/\s+/);
       _cachedWhitelist = urls.map(origin =>
-        Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin));
+        Services.scriptSecurityManager.createCodebasePrincipalFromOrigin(origin)
+      );
     }
     return _cachedWhitelist;
   }
 
   _onMessageToChrome(e) {
     // If target is window then we want the document principal, otherwise fallback to target itself.
-    let principal = e.target.nodePrincipal ? e.target.nodePrincipal : e.target.document.nodePrincipal;
+    let principal = e.target.nodePrincipal
+      ? e.target.nodePrincipal
+      : e.target.document.nodePrincipal;
 
     if (e.detail) {
       if (typeof e.detail != "string") {
@@ -61,17 +66,25 @@ class WebChannelChild extends ActorChild {
         // non-string values for e.detail.  They're whitelisted by site origin,
         // so we compare on originNoSuffix in order to avoid other origin attributes
         // that are not relevant here, such as containers or private browsing.
-        let objectsAllowed = this._getWhitelistedPrincipals().some(whitelisted =>
+        let objectsAllowed = this._getWhitelistedPrincipals().some(
-          principal.originNoSuffix == whitelisted.originNoSuffix);
+          whitelisted => principal.originNoSuffix == whitelisted.originNoSuffix
+        );
         if (!objectsAllowed) {
-          Cu.reportError("WebChannelMessageToChrome sent with an object from a non-whitelisted principal");
+          Cu.reportError(
+            "WebChannelMessageToChrome sent with an object from a non-whitelisted principal"
+          );
           return;
         }
       }
 
       let mm = getMessageManager(e);
 
-      mm.sendAsyncMessage("WebChannelMessageToChrome", e.detail, { eventTarget: e.target }, principal);
+      mm.sendAsyncMessage(
+        "WebChannelMessageToChrome",
+        e.detail,
+        { eventTarget: e.target },
+        principal
+      );
     } else {
       Cu.reportError("WebChannel message failed. No message detail.");
     }
@@ -86,19 +99,30 @@ class WebChannelChild extends ActorChild {
       let eventTarget = msg.objects.eventTarget || msg.target.content;
 
       // Use nodePrincipal if available, otherwise fallback to document principal.
-      let targetPrincipal = eventTarget instanceof Ci.nsIDOMWindow ? eventTarget.document.nodePrincipal : eventTarget.nodePrincipal;
+      let targetPrincipal =
+        eventTarget instanceof Ci.nsIDOMWindow
+          ? eventTarget.document.nodePrincipal
+          : eventTarget.nodePrincipal;
 
       if (msg.principal.subsumes(targetPrincipal)) {
         // If eventTarget is a window, use it as the targetWindow, otherwise
         // find the window that owns the eventTarget.
-        let targetWindow = eventTarget instanceof Ci.nsIDOMWindow ? eventTarget : eventTarget.ownerGlobal;
+        let targetWindow =
+          eventTarget instanceof Ci.nsIDOMWindow
+            ? eventTarget
+            : eventTarget.ownerGlobal;
 
-        eventTarget.dispatchEvent(new targetWindow.CustomEvent("WebChannelMessageToContent", {
+        eventTarget.dispatchEvent(
-          detail: Cu.cloneInto({
+          new targetWindow.CustomEvent("WebChannelMessageToContent", {
+            detail: Cu.cloneInto(
+              {
                 id: msg.data.id,
                 message: msg.data.message,
-          }, targetWindow),
+              },
-        }));
+              targetWindow
+            ),
+          })
+        );
       } else {
         Cu.reportError("WebChannel message failed. Principal mismatch.");
       }

toolkit/actors/WebNavigationChild.jsm

@@ -6,18 +6,31 @@
 
 var EXPORTED_SYMBOLS = ["WebNavigationChild"];
 
-const {ActorChild} = ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+const { ActorChild } = ChromeUtils.import(
-const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+  "resource://gre/modules/ActorChild.jsm"
-const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+);
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
 
-ChromeUtils.defineModuleGetter(this, "AppConstants",
+ChromeUtils.defineModuleGetter(
-                               "resource://gre/modules/AppConstants.jsm");
+  this,
-ChromeUtils.defineModuleGetter(this, "E10SUtils",
+  "AppConstants",
-                               "resource://gre/modules/E10SUtils.jsm");
+  "resource://gre/modules/AppConstants.jsm"
+);
+ChromeUtils.defineModuleGetter(
+  this,
+  "E10SUtils",
+  "resource://gre/modules/E10SUtils.jsm"
+);
 
-XPCOMUtils.defineLazyServiceGetter(this, "CrashReporter",
+XPCOMUtils.defineLazyServiceGetter(
+  this,
+  "CrashReporter",
   "@mozilla.org/xre/app-info;1",
-                                   "nsICrashReporter");
+  "nsICrashReporter"
+);
 
 class WebNavigationChild extends ActorChild {
   get webNavigation() {
@@ -54,7 +67,8 @@ class WebNavigationChild extends ActorChild {
     try {
       fn();
     } finally {
-      this.mm.docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+      this.mm.docShell
+        .QueryInterface(Ci.nsIInterfaceRequestor)
         .getInterface(Ci.nsIBrowserChild)
         .notifyNavigationFinished();
     }
@@ -75,10 +89,7 @@ class WebNavigationChild extends ActorChild {
   }
 
   gotoIndex(params) {
-    let {
+    let { index, cancelContentJSEpoch } = params || {};
-      index,
-      cancelContentJSEpoch,
-    } = params || {};
     this.mm.docShell.setCancelContentJSEpoch(cancelContentJSEpoch);
     this._wrapURIChangeCall(() => this.webNavigation.gotoIndex(index));
   }
@@ -101,26 +112,43 @@ class WebNavigationChild extends ActorChild {
       try {
         let url = Services.io.newURI(uri);
         // If the current URI contains a username/password, remove it.
-        url = url.mutate()
+        url = url
+          .mutate()
           .setUserPass("")
           .finalize();
         annotation = url.spec;
-      } catch (ex) { /* Ignore failures to parse and failures
+      } catch (ex) {
-                      on about: URIs. */ }
+        /* Ignore failures to parse and failures
+                      on about: URIs. */
+      }
       CrashReporter.annotateCrashReport("URL", annotation);
     }
-    if (postData)
+    if (postData) {
       postData = E10SUtils.makeInputStream(postData);
-    if (headers)
+    }
+    if (headers) {
       headers = E10SUtils.makeInputStream(headers);
-    if (baseURI)
+    }
+    if (baseURI) {
       baseURI = Services.io.newURI(baseURI);
-    this._assert(triggeringPrincipal, "We need a triggering principal to continue loading", new Error().lineNumber);
+    }
+    this._assert(
+      triggeringPrincipal,
+      "We need a triggering principal to continue loading",
+      new Error().lineNumber
+    );
 
-    triggeringPrincipal = E10SUtils.deserializePrincipal(triggeringPrincipal, () => {
+    triggeringPrincipal = E10SUtils.deserializePrincipal(
-      this._assert(false, "Unable to deserialize passed triggering principal", new Error().lineNumber);
+      triggeringPrincipal,
+      () => {
+        this._assert(
+          false,
+          "Unable to deserialize passed triggering principal",
+          new Error().lineNumber
+        );
         return Services.scriptSecurityManager.getSystemPrincipal({});
-    });
+      }
+    );
     if (csp) {
       csp = E10SUtils.deserializeCSP(csp);
     }
@@ -143,7 +171,11 @@ class WebNavigationChild extends ActorChild {
   _assert(condition, msg, line = 0) {
     let debug = Cc["@mozilla.org/xpcom/debug;1"].getService(Ci.nsIDebug2);
     if (!condition && debug.isDebugBuild) {
-      debug.warning(`${msg} - ${new Error().stack}`, "WebNavigationChild.js", line);
+      debug.warning(
+        `${msg} - ${new Error().stack}`,
+        "WebNavigationChild.js",
+        line
+      );
       debug.abort("WebNavigationChild.js", line);
     }
   }

toolkit/actors/ZoomParent.jsm

@@ -16,8 +16,7 @@ class ZoomParent extends JSWindowActorParent {
     let document = browser.ownerGlobal.document;
 
     switch (message.name) {
-      case "FullZoomChange":
+      case "FullZoomChange": {
-        {
         browser._fullZoom = message.data.value;
         let event = document.createEvent("Events");
         event.initEvent("FullZoomChange", true, false);
@@ -25,8 +24,7 @@ class ZoomParent extends JSWindowActorParent {
         break;
       }
 
-      case "TextZoomChange":
+      case "TextZoomChange": {
-        {
         browser._textZoom = message.data.value;
         let event = document.createEvent("Events");
         event.initEvent("TextZoomChange", true, false);
@@ -34,8 +32,7 @@ class ZoomParent extends JSWindowActorParent {
         break;
       }
 
-      case "ZoomChangeUsingMouseWheel":
+      case "ZoomChangeUsingMouseWheel": {
-        {
         let event = document.createEvent("Events");
         event.initEvent("ZoomChangeUsingMouseWheel", true, false);
         browser.dispatchEvent(event);
@@ -44,4 +41,3 @@ class ZoomParent extends JSWindowActorParent {
     }
   }
 }
-