Bug 1536556 - Replace raw thrown Cr.ERRORs with Components.Exception. r=mossop,remote-protocol-reviewers,marionette-reviewers,whimboo,necko-reviewers,geckoview-reviewers,valentin,agi

Raw Cr.ERROR don't get stack information, same as throwing JS literals instead
of `new Error()`s.

This was done automatically with a new eslint rule that will be introduced in
the next commit.  One instance of a raw Cr.ERROR was not replaced since it is
used in a test that specifically checks the preservation of raw Cr values in
XPCJS.  The rule will be disabled for that instance.

Differential Revision: https://phabricator.services.mozilla.com/D28073

browser/base/content/browser.js

@@ -6015,7 +6015,7 @@ nsBrowserAccess.prototype = {
   openURI(aURI, aOpenWindowInfo, aWhere, aFlags, aTriggeringPrincipal, aCsp) {
     if (!aURI) {
       Cu.reportError("openURI should only be called with a valid URI");
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
     return this.getContentWindowOrOpenURI(
       aURI,
@@ -6045,7 +6045,7 @@ nsBrowserAccess.prototype = {
         "nsBrowserAccess.openURI did not expect aOpenWindowInfo to be " +
           "passed if the context is OPEN_EXTERNAL."
       );
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     if (isExternal && aURI && aURI.schemeIs("chrome")) {

browser/base/content/nsContextMenu.js

@@ -1515,7 +1515,7 @@ class nsContextMenu {
           timer.cancel();
           channel.cancel(NS_ERROR_SAVE_LINK_AS_TIMEOUT);
         }
-        throw Cr.NS_ERROR_NO_INTERFACE;
+        throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
       },
     };
 

browser/base/content/tabbrowser.js

@@ -5725,7 +5725,7 @@
         !aBrowser.frameLoader ||
         !aBrowser.frameLoader.remoteTab
       ) {
-        throw Cr.NS_ERROR_FAILURE;
+        throw Components.Exception("", Cr.NS_ERROR_FAILURE);
       }
 
       // Tell our caller to redirect the load into this newly created process.

browser/base/content/test/general/browser_bug356571.js

@@ -18,7 +18,7 @@ const kPromptServiceFactory = Cm.getClassObject(
 var fakePromptServiceFactory = {
   createInstance(aOuter, aIid) {
     if (aOuter != null) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return promptService.QueryInterface(aIid);
   },

browser/base/content/test/tabs/browser_e10s_about_process.js

@@ -38,7 +38,7 @@ function AboutModule() {}
 
 AboutModule.prototype = {
   newChannel(aURI, aLoadInfo) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   getURIFlags(aURI) {
@@ -62,13 +62,13 @@ AboutModule.prototype = {
 var AboutModuleFactory = {
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return new AboutModule().QueryInterface(aIID);
   },
 
   lockFactory(aLock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),

browser/components/BrowserContentHandler.jsm

@@ -419,7 +419,7 @@ nsBrowserContentHandler.prototype = {
     // scripts or applications handle the situation as if Firefox was not
     // already running.
     if (cmdLine.handleFlag("remote", true)) {
-      throw Cr.NS_ERROR_ABORT;
+      throw Components.Exception("", Cr.NS_ERROR_ABORT);
     }
 
     var uriparam;
@@ -878,7 +878,7 @@ nsBrowserContentHandler.prototype = {
         cmdLine.length != urlFlagIdx + 2 ||
         /firefoxurl(-[a-f0-9]+)?:/i.test(urlParam)
       ) {
-        throw Cr.NS_ERROR_ABORT;
+        throw Components.Exception("", Cr.NS_ERROR_ABORT);
       }
       var isDefault = false;
       try {
@@ -892,7 +892,7 @@ nsBrowserContentHandler.prototype = {
       if (isDefault) {
         // Firefox is already the default HTTP handler.
         // We don't have to show the instruction page.
-        throw Cr.NS_ERROR_ABORT;
+        throw Components.Exception("", Cr.NS_ERROR_ABORT);
       }
     }
   },

browser/components/downloads/DownloadsCommon.jsm

@@ -1078,7 +1078,7 @@ const DownloadsViewPrototype = {
    * @note Subclasses should override this.
    */
   onDownloadStateChanged(download) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /**
@@ -1110,7 +1110,7 @@ const DownloadsViewPrototype = {
    * @note Subclasses should override this.
    */
   onDownloadRemoved(download) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /**
@@ -1120,7 +1120,7 @@ const DownloadsViewPrototype = {
    * @note Subclasses should override this.
    */
   _refreshProperties() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /**
@@ -1129,7 +1129,7 @@ const DownloadsViewPrototype = {
    * @note Subclasses should override this.
    */
   _updateView() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /**

browser/components/places/content/controller.js

@@ -755,7 +755,7 @@ PlacesController.prototype = {
   async newItem(aType) {
     let ip = this._view.insertionPoint;
     if (!ip) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
 
     let bookmarkGuid = PlacesUIUtils.showBookmarkDialog(
@@ -778,7 +778,7 @@ PlacesController.prototype = {
   async newSeparator() {
     var ip = this._view.insertionPoint;
     if (!ip) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
 
     let index = await ip.getIndex();
@@ -1266,7 +1266,7 @@ PlacesController.prototype = {
     // No reason to proceed if there isn't a valid insertion point.
     let ip = this._view.insertionPoint;
     if (!ip) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
 
     let action = this.clipboardAction;

browser/components/places/content/treeView.js

@@ -767,7 +767,7 @@ PlacesTreeView.prototype = {
 
     // XXX bug 517701: We don't know what to do when the root node is removed.
     if (aNode == this._rootNode) {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     }
 
     // Bail out for hidden separators.
@@ -781,7 +781,7 @@ PlacesTreeView.prototype = {
         : this._getRowForNode(aParentNode, true);
     let oldRow = this._getRowForNode(aNode, true, parentRow, aOldIndex);
     if (oldRow < 0) {
-      throw Cr.NS_ERROR_UNEXPECTED;
+      throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
     }
 
     // If the node was exclusively selected, the node next to it will be
@@ -847,7 +847,7 @@ PlacesTreeView.prototype = {
         : this._getRowForNode(aOldParent, true);
     let oldRow = this._getRowForNode(aNode, true, oldParentRow, aOldIndex);
     if (oldRow < 0) {
-      throw Cr.NS_ERROR_UNEXPECTED;
+      throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
     }
 
     // If this node is a container it could take up more than one row.
@@ -1225,7 +1225,7 @@ PlacesTreeView.prototype = {
    */
   nodeForTreeIndex(aIndex) {
     if (aIndex > this._rows.length) {
-      throw Cr.NS_ERROR_INVALID_ARG;
+      throw Components.Exception("", Cr.NS_ERROR_INVALID_ARG);
     }
 
     return this._getNodeForRow(aIndex);
@@ -1394,7 +1394,7 @@ PlacesTreeView.prototype = {
 
   canDrop: function PTV_canDrop(aRow, aOrientation, aDataTransfer) {
     if (!this._result) {
-      throw Cr.NS_ERROR_UNEXPECTED;
+      throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
     }
 
     if (this._controller.disableUserActions) {
@@ -1634,7 +1634,7 @@ PlacesTreeView.prototype = {
 
   toggleOpenState: function PTV_toggleOpenState(aRow) {
     if (!this._result) {
-      throw Cr.NS_ERROR_UNEXPECTED;
+      throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
     }
 
     let node = this._rows[aRow];
@@ -1661,7 +1661,7 @@ PlacesTreeView.prototype = {
 
   cycleHeader: function PTV_cycleHeader(aColumn) {
     if (!this._result) {
-      throw Cr.NS_ERROR_UNEXPECTED;
+      throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
     }
 
     // Sometimes you want a tri-state sorting, and sometimes you don't. This
@@ -1764,7 +1764,7 @@ PlacesTreeView.prototype = {
 
         break;
       default:
-        throw Cr.NS_ERROR_INVALID_ARG;
+        throw Components.Exception("", Cr.NS_ERROR_INVALID_ARG);
     }
     this._result.sortingMode = newSort;
   },

browser/components/preferences/main.js

@@ -3652,7 +3652,7 @@ class InternalHandlerInfoWrapper extends HandlerInfoWrapper {
   }
 
   get enabled() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   }
 
   get description() {

browser/components/preferences/tests/browser_advanced_update.js

@@ -20,7 +20,7 @@ const mockUpdateManager = {
 
   createInstance(outer, iiD) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iiD);
   },

browser/components/sessionstore/test/browser_parentProcessRestoreHash.js

@@ -31,7 +31,7 @@ let TestAboutPage = {
 
   createInstance(outer, iid) {
     if (outer != null) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },

browser/components/ssb/content/ssb.js

@@ -119,7 +119,7 @@ class BrowserDOMWindow {
     console.error(
       "createContentWindow should never be called from a remote browser"
     );
-    throw Cr.NS_ERROR_FAILURE;
+    throw Components.Exception("", Cr.NS_ERROR_FAILURE);
   }
 
   /**
@@ -135,7 +135,7 @@ class BrowserDOMWindow {
    */
   openURI(uri, openWindowInfo, where, flags, triggeringPrincipal, csp) {
     console.error("openURI should never be called from a remote browser");
-    throw Cr.NS_ERROR_FAILURE;
+    throw Components.Exception("", Cr.NS_ERROR_FAILURE);
   }
 
   /**

browser/components/tests/browser/browser_initial_tab_remoteType.js

@@ -104,7 +104,7 @@ function constructOnePageCmdLine(aURL) {
       if (aIndex == 0 && this._argCount) {
         return this._arg;
       }
-      throw Cr.NS_ERROR_INVALID_ARG;
+      throw Components.Exception("", Cr.NS_ERROR_INVALID_ARG);
     },
 
     findFlag() {
@@ -112,11 +112,11 @@ function constructOnePageCmdLine(aURL) {
     },
 
     removeArguments() {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
 
     handleFlag() {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
 
     handleFlagWithParam() {
@@ -139,15 +139,15 @@ function constructOnePageCmdLine(aURL) {
     preventDefault: false,
 
     get workingDirectory() {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
 
     get windowContext() {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
 
     resolveFile() {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
 
     resolveURI() {

browser/extensions/pdfjs/content/PdfStreamConverter.jsm

@@ -1001,7 +1001,7 @@ PdfStreamConverter.prototype = {
 
   // nsIStreamConverter::convert
   convert(aFromStream, aFromType, aToType, aCtxt) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   // nsIStreamConverter::asyncConvertData

browser/extensions/pdfjs/pdfjs.js

@@ -28,7 +28,7 @@ function StreamConverterFactory() {
   if (Services.cpmm.sharedData.get("pdfjs.enabled")) {
     return new PdfStreamConverter();
   }
-  throw Cr.NS_ERROR_FACTORY_NOT_REGISTERED;
+  throw Components.Exception("", Cr.NS_ERROR_FACTORY_NOT_REGISTERED);
 }
 
 var EXPORTED_SYMBOLS = ["StreamConverterFactory"];

browser/modules/FaviconLoader.jsm

@@ -330,7 +330,7 @@ class FaviconLoad {
     if (iid.equals(Ci.nsIChannelEventSink)) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   }
 }
 

chrome/test/unit/test_data_protocol_registration.js

@@ -30,7 +30,7 @@ function run_test() {
     contractID: XULAPPINFO_CONTRACTID,
     createInstance(outer, iid) {
       if (outer != null) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return XULAppInfo.QueryInterface(iid);
     },

chrome/test/unit/test_no_remote_registration.js

@@ -18,7 +18,7 @@ ProtocolHandler.prototype = {
   defaultPort: -1,
   allowPort: () => false,
   newChannel() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   QueryInterface: ChromeUtils.generateQI([Ci.nsIProtocolHandler]),
 };
@@ -75,7 +75,7 @@ function run_test() {
     contractID: "@mozilla.org/xre/app-info;1",
     createInstance(outer, iid) {
       if (outer != null) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return XULAppInfo.QueryInterface(iid);
     },
@@ -94,7 +94,7 @@ function run_test() {
         "@mozilla.org/network/protocol;1?name=" + testProtocols[i].scheme,
       createInstance(aOuter, aIID) {
         if (aOuter != null) {
-          throw Cr.NS_ERROR_NO_AGGREGATION;
+          throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
         }
         let handler = new ProtocolHandler(this.scheme, this.flags, this.CID);
         return handler.QueryInterface(aIID);

devtools/client/jsonview/converter-observer.js

@@ -106,7 +106,7 @@ JsonViewSniffer.prototype = {
 const JsonSnifferFactory = {
   createInstance: function(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return new JsonViewSniffer().QueryInterface(iid);
   },
@@ -120,7 +120,7 @@ const JsonSnifferFactory = {
 const JsonViewFactory = {
   createInstance: function(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return JsonViewService.createInstance().QueryInterface(iid);
   },

devtools/client/responsive/browser/web-navigation.js

@@ -120,10 +120,10 @@ BrowserElementWebNavigation.prototype = {
   // Bug 1233803 - accessing the sessionHistory of remote browsers should be
   // done in content scripts.
   get sessionHistory() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   set sessionHistory(value) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   _sendMessage(message, data) {
@@ -142,7 +142,7 @@ BrowserElementWebNavigation.prototype = {
   },
 
   swapBrowser(browser) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   copyStateFrom(otherWebNavigation) {

devtools/server/actors/network-monitor/network-response-listener.js

@@ -83,7 +83,7 @@ NetworkResponseListener.prototype = {
     if (this._wrappedNotificationCallbacks) {
       return this._wrappedNotificationCallbacks.getInterface(iid);
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   /**

docshell/test/chrome/bug311007_window.xhtml

@@ -50,7 +50,7 @@ WebProgressListener.prototype = {
         aIID.equals(Ci.nsISupportsWeakReference) ||
         aIID.equals(Ci.nsISupports))
       return this;
-    throw Cr.NS_NOINTERFACE;
+    throw Components.Exception("", Cr.NS_NOINTERFACE);
   },
 
   onLocationChange: function(aWebProgress, aRequest, aLocation, aFlags) {

docshell/test/chrome/test_bug565388.xhtml

@@ -46,7 +46,7 @@ function test() {
       if (iid.equals(Ci.nsIWebProgressListener) ||
           iid.equals(Ci.nsISupportsWeakReference))
         return this;
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     }
   }
 

docshell/test/chrome/test_bug789773.xhtml

@@ -44,7 +44,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=789773
       if (iid.equals(Ci.nsISupportsWeakReference) ||
           iid.equals(Ci.nsIWebProgressListener))
         return this;
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     }
   }
 

docshell/test/chrome/test_docRedirect.xhtml

@@ -64,7 +64,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=1342989
       if (iid.equals(Ci.nsIWebProgressListener) ||
           iid.equals(Ci.nsISupportsWeakReference))
         return this;
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     }
   }
 

dom/base/DOMRequestHelper.jsm

@@ -82,7 +82,7 @@ DOMRequestIpcHelper.prototype = {
           this._listeners[name].count++;
           return;
         } else {
-          throw Cr.NS_ERROR_FAILURE;
+          throw Components.Exception("", Cr.NS_ERROR_FAILURE);
         }
       }
 
@@ -279,7 +279,7 @@ DOMRequestIpcHelper.prototype = {
       Cu.reportError(
         "DOMRequestHelper trying to create a DOMRequest without a valid window, failing."
       );
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
     return Services.DOMRequest.createRequest(this._window);
   },
@@ -295,7 +295,7 @@ DOMRequestIpcHelper.prototype = {
       Cu.reportError(
         "DOMRequestHelper trying to create a Promise without a valid window, failing."
       );
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
     return new this._window.Promise(aPromiseInit);
   },

dom/base/test/browser_blocking_image.js

@@ -164,7 +164,7 @@ add_task(async function block_pending_request_test() {
         if (aIID.equals(Ci.imgIScriptedNotificationObserver)) {
           return this;
         }
-        throw Cr.NS_ERROR_NO_INTERFACE;
+        throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
       },
     };
 

dom/base/test/chrome/test_bug682305.html

@@ -82,13 +82,13 @@ CustomChannel.prototype = {
     return false;
   },
   cancel() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   suspend() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   resume() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   QueryInterface: ChromeUtils.generateQI([Ci.nsIChannel, Ci.nsIRequest]),
 };

dom/base/test/chrome/test_bug800386.xhtml

@@ -41,7 +41,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=800386
           forwardFailed = true;
         }
       }
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     },
 
     QueryInterface: ChromeUtils.generateQI([Ci.nsIInterfaceRequestor])

dom/browser-element/BrowserElementPromptService.jsm

@@ -127,15 +127,15 @@ BrowserElementPrompt.prototype = {
     checkMsg,
     checkState
   ) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   promptPassword(title, text, password, checkMsg, checkState) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   select(title, text, aSelectList, aOutSelection) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   _buildConfirmExButtonProperties(
@@ -237,7 +237,7 @@ BrowserElementAuthPrompt.prototype = {
   QueryInterface: ChromeUtils.generateQI([Ci.nsIAuthPrompt2]),
 
   promptAuth: function promptAuth(channel, level, authInfo) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   asyncPromptAuth: function asyncPromptAuth(
@@ -254,13 +254,13 @@ BrowserElementAuthPrompt.prototype = {
       authInfo.flags & Ci.nsIAuthInformation.AUTH_PROXY &&
       authInfo.flags & Ci.nsIAuthInformation.ONLY_PASSWORD
     ) {
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     let frame = this._getFrameFromChannel(channel);
     if (!frame) {
       debug("Cannot get frame, asyncPromptAuth fail");
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     let browserElementParent = BrowserElementPromptService.getBrowserElementParentForFrame(
@@ -269,7 +269,7 @@ BrowserElementAuthPrompt.prototype = {
 
     if (!browserElementParent) {
       debug("Failed to load browser element parent.");
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     let consumer = {
@@ -671,7 +671,7 @@ var BrowserElementPromptService = {
     var newFactory = {
       createInstance(outer, iid) {
         if (outer != null) {
-          throw Cr.NS_ERROR_NO_AGGREGATION;
+          throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
         }
         return newInstance.QueryInterface(iid);
       },

dom/media/PeerConnection.jsm

@@ -221,7 +221,7 @@ setupPrototype(GlobalPCList, {
   _xpcom_factory: {
     createInstance(outer, iid) {
       if (outer) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return _globalPCList.QueryInterface(iid);
     },

dom/notification/test/chrome/test_notification_system_principal.xhtml

@@ -39,12 +39,12 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=874090
           aIID.equals(Ci.nsIAlertsService)) {
         return this;
       }
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     },
 
     createInstance: function(aOuter, aIID) {
       if (aOuter != null) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return this.QueryInterface(aIID);
     }

dom/plugins/test/mochitest/test_crash_notify.xhtml

@@ -57,7 +57,7 @@ var testObserver = {
         iid.equals(Ci.nsISupportsWeakReference) ||
         iid.equals(Ci.nsISupports))
       return this;
-    throw Cr.NS_NOINTERFACE;
+    throw Components.Exception("", Cr.NS_NOINTERFACE);
   }
 };
 

dom/plugins/test/mochitest/test_crash_notify_no_report.xhtml

@@ -60,7 +60,7 @@ var testObserver = {
         iid.equals(Ci.nsISupportsWeakReference) ||
         iid.equals(Ci.nsISupports))
       return this;
-    throw Cr.NS_NOINTERFACE;
+    throw Components.Exception("", Cr.NS_NOINTERFACE);
   }
 };
 

dom/plugins/test/mochitest/test_crash_submit.xhtml

@@ -104,7 +104,7 @@ var testObserver = {
         iid.equals(Ci.nsISupportsWeakReference) ||
         iid.equals(Ci.nsISupports))
       return this;
-    throw Cr.NS_NOINTERFACE;
+    throw Components.Exception("", Cr.NS_NOINTERFACE);
   }
 };
 

dom/plugins/test/mochitest/test_hang_submit.xhtml

@@ -109,7 +109,7 @@ var testObserver = {
         iid.equals(Ci.nsISupportsWeakReference) ||
         iid.equals(Ci.nsISupports))
       return this;
-    throw Cr.NS_NOINTERFACE;
+    throw Components.Exception("", Cr.NS_NOINTERFACE);
   }
 };
 

dom/plugins/test/mochitest/xulbrowser_plugin_visibility.xhtml

@@ -39,7 +39,7 @@
       if (iid.equals(nsIWebProgressListener) ||
           iid.equals(Ci.nsISupportsWeakReference))
         return this;
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     };
 
     var loadCount = 0;

dom/plugins/test/unit/head_plugins.js

@@ -66,7 +66,7 @@ function do_get_profile_startup() {
       if (prop == "ProfDS") {
         return file.clone();
       }
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     },
     QueryInterface: ChromeUtils.generateQI(["nsIDirectoryServiceProvider"]),
   };

dom/presentation/PresentationDataChannelSessionTransport.jsm

@@ -62,12 +62,12 @@ PresentationTransportBuilder.prototype = {
   buildDataChannelTransport(aRole, aWindow, aListener) {
     if (!aRole || !aWindow || !aListener) {
       log("buildDataChannelTransport with illegal parameters");
-      throw Cr.NS_ERROR_ILLEGAL_VALUE;
+      throw Components.Exception("", Cr.NS_ERROR_ILLEGAL_VALUE);
     }
 
     if (this._window) {
       log("buildDataChannelTransport has started.");
-      throw Cr.NS_ERROR_UNEXPECTED;
+      throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
     }
 
     log("buildDataChannelTransport with role " + aRole);
@@ -122,7 +122,7 @@ PresentationTransportBuilder.prototype = {
         };
         break;
       default:
-        throw Cr.NS_ERROR_ILLEGAL_VALUE;
+        throw Components.Exception("", Cr.NS_ERROR_ILLEGAL_VALUE);
     }
 
     // TODO bug 1228235 we should have a way to let device providers customize
@@ -333,7 +333,7 @@ PresentationTransport.prototype = {
 
   // nsIPresentationTransport
   get selfAddress() {
-    throw Cr.NS_ERROR_NOT_AVAILABLE;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
   },
 
   get callback() {
@@ -373,7 +373,7 @@ PresentationTransport.prototype = {
     }
 
     if (!this._callback) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
 
     this._enableDataNotification = true;
@@ -402,7 +402,7 @@ PresentationTransport.prototype = {
 
   _doNotifyData(aData) {
     if (!this._callback) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
 
     if (aData instanceof this._window.Blob) {

dom/presentation/provider/PresentationControlService.jsm

@@ -53,7 +53,7 @@ PresentationControlService.prototype = {
     if (this._isServiceInit()) {
       DEBUG &&
         log("PresentationControlService - server socket has been initialized"); // jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     /**
@@ -94,7 +94,7 @@ PresentationControlService.prototype = {
   _serverSocketInit(aPort, aCert) {
     if (!this._serverSocket) {
       DEBUG && log("PresentationControlService - create server socket fail."); // jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     try {
@@ -112,7 +112,7 @@ PresentationControlService.prototype = {
       // NS_ERROR_SOCKET_ADDRESS_IN_USE
       DEBUG &&
         log("PresentationControlService - init server socket fail: " + e); // jshint ignore:line
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     this._port = this._serverSocket.port;
@@ -235,7 +235,7 @@ PresentationControlService.prototype = {
     } catch (e) {
       DEBUG && log("PresentationControlService - createTransport throws: " + e); // jshint ignore:line
       // Pop the exception to |TCPDevice.establishControlChannel|
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
     return socketTransport;
   },
@@ -947,7 +947,7 @@ TCPControlChannel.prototype = {
   reconnect(aPresentationId, aUrl) {
     DEBUG && log("TCPControlChannel - reconnect with role: " + this._direction); // jshint ignore:line
     if (this._direction != "sender") {
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     this._stateMachine.reconnect(aPresentationId, aUrl);

dom/presentation/tests/mochitest/PresentationSessionChromeScript.js

@@ -85,7 +85,7 @@ const mockedServerSocket = {
   QueryInterface: ChromeUtils.generateQI([Ci.nsIServerSocket, Ci.nsIFactory]),
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },
@@ -227,7 +227,7 @@ const mockedDevicePrompt = {
   ]),
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },
@@ -260,7 +260,7 @@ const mockedSessionTransport = {
   ]),
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },
@@ -362,7 +362,7 @@ const mockedNetworkManager = {
   QueryInterface: ChromeUtils.generateQI([Ci.nsINetworkManager, Ci.nsIFactory]),
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },
@@ -380,7 +380,7 @@ const mockedRequestUIGlue = {
   ]),
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },

dom/presentation/tests/mochitest/PresentationSessionChromeScript1UA.js

@@ -165,7 +165,7 @@ const mockDevice = {
   type: "type",
   establishControlChannel(url, presentationId) {
     if (triggerControlChannelError) {
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
     sendAsyncMessage("control-channel-established");
     return mockControlChannelOfSender;
@@ -185,7 +185,7 @@ const mockDevicePrompt = {
   ]),
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },
@@ -220,7 +220,7 @@ const mockRequestUIGlue = {
   },
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },

dom/presentation/tests/mochitest/PresentationSessionFrameScript.js

@@ -62,7 +62,7 @@ function loadPrivilegedScriptTest() {
       const interfaces = [Ci.nsIPresentationChannelDescription];
 
       if (!interfaces.some(v => iid.equals(v))) {
-        throw Cr.NS_ERROR_NO_INTERFACE;
+        throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
       }
       return this;
     },
@@ -102,13 +102,13 @@ function loadPrivilegedScriptTest() {
       ];
 
       if (!interfaces.some(v => iid.equals(v))) {
-        throw Cr.NS_ERROR_NO_INTERFACE;
+        throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
       }
       return this;
     },
     createInstance(aOuter, aIID) {
       if (aOuter) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return this.QueryInterface(aIID);
     },

dom/presentation/tests/xpcshell/test_multicast_dns_device_provider.js

@@ -52,7 +52,7 @@ function MockFactory(aClass) {
 MockFactory.prototype = {
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     switch (typeof this._cls) {
       case "function":
@@ -64,7 +64,7 @@ MockFactory.prototype = {
     }
   },
   lockFactory(aLock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
 };

dom/push/PushComponents.jsm

@@ -27,7 +27,7 @@ XPCOMUtils.defineLazyGetter(this, "PushService", function() {
     return PushService;
   }
 
-  throw Cr.NS_ERROR_NOT_AVAILABLE;
+  throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
 });
 
 // Observer notification topics for push messages and subscription status

dom/serviceworkers/test/browser_userContextId_openWindow.js

@@ -41,12 +41,12 @@ let mockAlertsService = {
     if (aIID.equals(Ci.nsISupports) || aIID.equals(Ci.nsIAlertsService)) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   createInstance(aOuter, aIID) {
     if (aOuter != null) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },

dom/tests/mochitest/chrome/test_cyclecollector.xhtml

@@ -26,7 +26,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=
       if (aIID.equals(Ci.nsIObserver) ||
           aIID.equals(Ci.nsISupports))
         return this;
-      throw Cr.NS_NOINTERFACE;
+      throw Components.Exception("", Cr.NS_NOINTERFACE);
     },
     observe: function(subject, topic, data) {
       obs.removeObserver(observer, "cycle-collector-begin");

dom/tests/unit/test_geolocation_reset_accuracy.js

@@ -12,12 +12,12 @@ var provider = {
   ]),
   createInstance: function eventsink_ci(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },
   lockFactory: function eventsink_lockf(lock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   startup() {},
   watch() {},

dom/tests/unit/test_geolocation_reset_accuracy_wrap.js

@@ -12,12 +12,12 @@ var provider = {
   ]),
   createInstance: function eventsink_ci(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },
   lockFactory: function eventsink_lockf(lock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   startup() {},
   watch() {},

dom/xslt/tests/XSLTMark/XSLTMark-static.js

@@ -20,7 +20,7 @@ function loadFile(aUriSpec) {
   enablePrivilege("UniversalXPConnect");
   var serv = Cc[IOSERVICE_CTRID].getService(nsIIOService);
   if (!serv) {
-    throw Cr.ERR_FAILURE;
+    throw Components.Exception("", Cr.ERR_FAILURE);
   }
   var chan = NetUtil.newChannel({
     uri: aUriSpec,

extensions/permissions/test/unit/test_permmanager_migrate_4-7_no_history.js

@@ -13,7 +13,7 @@ var factory = {
     throw new Error("There is no history service");
   },
   lockFactory() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
 };

image/test/mochitest/test_net_failedtoprocess.html

@@ -28,7 +28,7 @@ var observer = {
     if (aIID.equals(Ci.nsISupports) ||
         aIID.equals(Ci.nsIObserver))
       return this;
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   observe(subject, topic, data) {

layout/base/tests/chrome/printpreview_bug396024_helper.xhtml

@@ -35,7 +35,7 @@ function printpreview() {
       if (iid.equals(Ci.nsIWebProgressListener) ||
           iid.equals(Ci.nsISupportsWeakReference))
             return this;
-      throw Cr.NS_NOINTERFACE;
+      throw Components.Exception("", Cr.NS_NOINTERFACE);
     }
   }
   var prefs = Cc["@mozilla.org/preferences-service;1"]

layout/base/tests/chrome/printpreview_bug482976_helper.xhtml

@@ -35,7 +35,7 @@ function printpreview() {
       if (iid.equals(Ci.nsIWebProgessListener) ||
           iid.equals(Ci.nsISupportsWeakReference))
             return this;
-      throw Cr.NS_NOINTERFACE;
+      throw Components.Exception("", Cr.NS_NOINTERFACE);
     }
   }
   var prefs = Cc["@mozilla.org/preferences-service;1"]

layout/base/tests/chrome/printpreview_helper.xhtml

@@ -42,7 +42,7 @@ function printpreview(hasMozPrintCallback) {
       if (iid.equals(Ci.nsIWebProgressListener) ||
           iid.equals(Ci.nsISupportsWeakReference))
             return this;
-      throw Cr.NS_NOINTERFACE;
+      throw Components.Exception("", Cr.NS_NOINTERFACE);
     }
   }
   var prefs = Cc["@mozilla.org/preferences-service;1"]

layout/style/test/chrome/test_bug1160724.xhtml

@@ -26,7 +26,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=1160724
     QueryInterface(iid) {
       if (!iid.equals(Ci.nsISupports) &&
           !iid.equals(Ci.nsIConsoleListener)) {
-        throw Cr.NS_NOINTERFACE;
+        throw Components.Exception("", Cr.NS_NOINTERFACE);
       }
       return this;
     },

mobile/android/components/geckoview/GeckoViewPrompt.js

@@ -1022,7 +1022,7 @@ FilePickerDelegate.prototype = {
       aMode === Ci.nsIFilePicker.modeGetFolder ||
       aMode === Ci.nsIFilePicker.modeSave
     ) {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     }
     this._prompt = new PromptDelegate(aParent);
     this._msg = {
@@ -1044,7 +1044,7 @@ FilePickerDelegate.prototype = {
   },
 
   show() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   open(aFilePickerShownCallback) {
@@ -1084,7 +1084,7 @@ FilePickerDelegate.prototype = {
 
   get file() {
     if (!this._fileData) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
     const fileData = this._fileData[0];
     if (!fileData) {
@@ -1099,7 +1099,7 @@ FilePickerDelegate.prototype = {
 
   *_getEnumerator(aDOMFile) {
     if (!this._fileData) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
 
     for (const fileData of this._fileData) {
@@ -1123,7 +1123,7 @@ FilePickerDelegate.prototype = {
 
   get domFileOrDirectory() {
     if (!this._fileData) {
-      throw Cr.NS_ERROR_NOT_AVAILABLE;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
     }
     return this._fileData[0] ? this._fileData[0].domFile : null;
   },

mobile/android/components/geckoview/GeckoViewPush.js

@@ -176,12 +176,12 @@ PushSubscription.prototype = {
 
   /** The last time a message was sent to this subscription. */
   get lastPush() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /** The total number of messages sent to this subscription. */
   get pushCount() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /**
@@ -203,7 +203,7 @@ PushSubscription.prototype = {
 
   /** The private key used to decrypt incoming push messages, in JWK format */
   get p256dhPrivateKey() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   /**

modules/libpref/test/unit/test_libPrefs.js

@@ -403,7 +403,7 @@ function run_test() {
       if (aIID.equals(Ci.nsIObserver) || aIID.equals(Ci.nsISupports)) {
         return this;
       }
-      throw Cr.NS_NOINTERFACE;
+      throw Components.Exception("", Cr.NS_NOINTERFACE);
     }
 
     observe(aSubject, aTopic, aState) {

netwerk/test/browser/browser_nsIFormPOSTActionChannel.js

@@ -44,7 +44,7 @@ CustomProtocolHandler.prototype = {
   /** nsIFactory */
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(aIID);
   },
@@ -78,7 +78,7 @@ CustomChannel.prototype = {
     return this._uploadStream;
   },
   set uploadStream(val) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   setUploadStream(aStream, aContentType, aContentLength) {
     this._uploadStream = aStream;
@@ -105,10 +105,10 @@ CustomChannel.prototype = {
     return -1;
   },
   set contentLength(val) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   open() {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   asyncOpen(aListener) {
     var data = `

netwerk/test/httpserver/test/test_async_response_sending.js

@@ -575,7 +575,7 @@ function CustomPipe(name) {
       );
 
       if (this._readable < count || self._data.length < count) {
-        throw Cr.NS_BASE_STREAM_WOULD_BLOCK;
+        throw Components.Exception("", Cr.NS_BASE_STREAM_WOULD_BLOCK);
       }
       this._readable -= count;
       return self._data.splice(0, count);
@@ -881,7 +881,7 @@ function CustomPipe(name) {
       );
 
       if (this._writable < bytes.length) {
-        throw Cr.NS_BASE_STREAM_WOULD_BLOCK;
+        throw Components.Exception("", Cr.NS_BASE_STREAM_WOULD_BLOCK);
       }
 
       self._data.push.apply(self._data, bytes);
@@ -907,7 +907,7 @@ function CustomPipe(name) {
         throw self._status;
       }
       if (this._writable === 0) {
-        throw Cr.NS_BASE_STREAM_WOULD_BLOCK;
+        throw Components.Exception("", Cr.NS_BASE_STREAM_WOULD_BLOCK);
       }
 
       var actualWritten;

netwerk/test/unit/head_cache2.js

@@ -279,7 +279,7 @@ OpenCallback.prototype = {
       LOG_C2(self, "Notifying");
       self.goon(entry);
     });
-    throw Cr.NS_ERROR_FAILURE;
+    throw Components.Exception("", Cr.NS_ERROR_FAILURE);
   },
 };
 

netwerk/test/unit/head_channels.js

@@ -257,12 +257,12 @@ ChannelEventSink.prototype = {
     if (iid.equals(Ci.nsIChannelEventSink)) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   asyncOnChannelRedirect(oldChannel, newChannel, flags, callback) {
     if (this._flags & ES_ABORT_REDIRECT) {
-      throw Cr.NS_BINDING_ABORTED;
+      throw Components.Exception("", Cr.NS_BINDING_ABORTED);
     }
 
     callback.onRedirectVerifyCallback(Cr.NS_OK);

netwerk/test/unit/test_about_protocol.js

@@ -20,12 +20,12 @@ var unsafeAboutModule = {
 var factory = {
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return unsafeAboutModule.QueryInterface(aIID);
   },
   lockFactory(aLock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
 };

netwerk/test/unit/test_auth_dialog_permission.js

@@ -95,7 +95,7 @@ Requestor.prototype = {
       return this.prompter;
     }
 
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   prompter: null,
@@ -159,7 +159,7 @@ Test.prototype = {
       do_throw("Unexpected exception: " + e);
     }
 
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable(request, stream, offset, count) {

netwerk/test/unit/test_auth_proxy.js

@@ -148,7 +148,7 @@ Requestor.prototype = {
   getInterface: function requestor_gi(iid) {
     if (iid.equals(Ci.nsIAuthPrompt)) {
       dump("authprompt1 not implemented\n");
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     }
     if (iid.equals(Ci.nsIAuthPrompt2)) {
       try {
@@ -161,7 +161,7 @@ Requestor.prototype = {
         do_throw(e);
       }
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   prompt2: null,
@@ -197,7 +197,7 @@ var listener = {
       do_throw("Unexpected exception: " + e);
     }
 
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable: function test_ODA() {

netwerk/test/unit/test_authentication.js

@@ -183,7 +183,7 @@ AuthPrompt2.prototype = {
   },
 
   asyncPromptAuth: function ap2_async(chan, cb, ctx, lvl, info) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 };
 
@@ -211,7 +211,7 @@ Requestor.prototype = {
       return this.prompt2;
     }
 
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   prompt1: null,
@@ -231,7 +231,7 @@ RealmTestRequestor.prototype = {
       return this;
     }
 
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   promptAuth: function realmtest_checkAuth(channel, level, authInfo) {
@@ -241,7 +241,7 @@ RealmTestRequestor.prototype = {
   },
 
   asyncPromptAuth: function realmtest_async(chan, cb, ctx, lvl, info) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 };
 
@@ -265,7 +265,7 @@ var listener = {
       do_throw("Unexpected exception: " + e);
     }
 
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable: function test_ODA() {

netwerk/test/unit/test_bug455311.js

@@ -36,7 +36,7 @@ NotificationCallbacks.prototype = {
     Assert.equal(newChan.originalURI.spec, this._newURI.spec);
     Assert.equal(newChan.originalURI, newChan.URI);
     Assert.equal(newChan.URI.spec, this._newURI.spec);
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 };
 

netwerk/test/unit/test_bug586908.js

@@ -15,7 +15,7 @@ XPCOMUtils.defineLazyGetter(this, "systemSettings", function() {
     mainThreadOnly: true,
     PACURI: "http://localhost:" + httpserv.identity.primaryPort + "/redirect",
     getProxyForURI(aURI) {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
   };
 });

netwerk/test/unit/test_content_sniffer.js

@@ -23,12 +23,12 @@ var sniffer = {
   QueryInterface: ChromeUtils.generateQI(["nsIFactory", "nsIContentSniffer"]),
   createInstance: function sniffer_ci(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },
   lockFactory: function sniffer_lockf(lock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   getMIMETypeFromContent(request, data, length) {
@@ -69,11 +69,11 @@ var listener = {
       do_throw("Unexpected exception: " + e);
     }
 
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable: function test_ODA() {
-    throw Cr.NS_ERROR_UNEXPECTED;
+    throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
   },
 
   onStopRequest: function test_onStopR(request, status) {

netwerk/test/unit/test_cookie_header.js

@@ -42,11 +42,11 @@ var listener = {
       do_throw("Unexpected exception: " + e);
     }
 
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable: function test_ODA() {
-    throw Cr.NS_ERROR_UNEXPECTED;
+    throw Components.Exception("", Cr.NS_ERROR_UNEXPECTED);
   },
 
   onStopRequest: function test_onStopR(request, status) {

netwerk/test/unit/test_event_sink.js

@@ -22,12 +22,12 @@ var eventsink = {
   QueryInterface: ChromeUtils.generateQI(["nsIFactory", "nsIChannelEventSink"]),
   createInstance: function eventsink_ci(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },
   lockFactory: function eventsink_lockf(lock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 
   asyncOnChannelRedirect: function eventsink_onredir(
@@ -38,14 +38,14 @@ var eventsink = {
   ) {
     // veto
     this.called = true;
-    throw Cr.NS_BINDING_ABORTED;
+    throw Components.Exception("", Cr.NS_BINDING_ABORTED);
   },
 
   getInterface: function eventsink_gi(iid) {
     if (iid.equals(Ci.nsIChannelEventSink)) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   called: false,
@@ -86,7 +86,7 @@ var listener = {
       do_throw("Unexpected exception: " + e);
     }
 
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable: function test_ODA() {

netwerk/test/unit/test_http1-proxy.js

@@ -59,7 +59,7 @@ class UnxpectedAuthPrompt2 {
   }
   asyncPromptAuth() {
     this.signal.triggered = true;
-    throw Cr.ERROR_UNEXPECTED;
+    throw Components.Exception("", Cr.ERROR_UNEXPECTED);
   }
 }
 
@@ -72,7 +72,7 @@ class AuthRequestor {
     if (iid.equals(Ci.nsIAuthPrompt2)) {
       return this.prompt();
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   }
 }
 

netwerk/test/unit/test_http2-proxy.js

@@ -77,7 +77,7 @@ class UnxpectedAuthPrompt2 {
   }
   asyncPromptAuth() {
     this.signal.triggered = true;
-    throw Cr.ERROR_UNEXPECTED;
+    throw Components.Exception("", Cr.ERROR_UNEXPECTED);
   }
 }
 
@@ -105,7 +105,7 @@ class AuthRequestor {
     if (iid.equals(Ci.nsIAuthPrompt2)) {
       return this.prompt();
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   }
 }
 

netwerk/test/unit/test_plaintext_sniff.js

@@ -128,7 +128,7 @@ function makeListener(headerIdx, bodyIdx) {
         do_throw("Unexpected exception: " + e);
       }
 
-      throw Cr.NS_ERROR_ABORT;
+      throw Components.Exception("", Cr.NS_ERROR_ABORT);
     },
 
     onDataAvailable: function test_ODA() {

netwerk/test/unit/test_post.js

@@ -44,7 +44,7 @@ var listenerCallback = {
     if (iid.equals(Ci.nsIProgressEventSink)) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   onProgress(request, progress, progressMax) {

netwerk/test/unit/test_progress.js

@@ -42,7 +42,7 @@ var progressCallback = {
     ) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   onStartRequest(request) {

netwerk/test/unit/test_protocolproxyservice-async-filters.js

@@ -30,7 +30,7 @@ TestProtocolHandler.prototype = {
     Ci.nsIProtocolHandler.ALLOWS_PROXY |
     Ci.nsIProtocolHandler.URI_DANGEROUS_TO_LOAD,
   newChannel(uri, aLoadInfo) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   allowPort(port, scheme) {
     return true;
@@ -98,7 +98,7 @@ TestFilter.prototype = {
 
   applyFilter(uri, pi, cb) {
     if (this._result == THROW) {
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     }
 
     var pi_tail = pps.newProxyInfo(

netwerk/test/unit/test_protocolproxyservice.js

@@ -41,7 +41,7 @@ TestProtocolHandler.prototype = {
     Ci.nsIProtocolHandler.ALLOWS_PROXY |
     Ci.nsIProtocolHandler.URI_DANGEROUS_TO_LOAD,
   newChannel(uri, aLoadInfo) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   allowPort(port, scheme) {
     return true;

netwerk/test/unit/test_proxyconnect.js

@@ -136,7 +136,7 @@ var connectHandler = {
     ) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 };
 

netwerk/test/unit/test_resumable_channel.js

@@ -51,7 +51,7 @@ Requestor.prototype = {
       return this.prompt2;
     }
 
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   prompt2: null,

netwerk/test/unit/test_suspend_channel_on_authRetry.js

@@ -120,7 +120,7 @@ Requestor.prototype = {
       return this.prompt;
     }
 
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   },
 
   prompt: null,
@@ -145,7 +145,7 @@ var listener = {
     } catch (e) {
       do_throw("Unexpected exception: " + e);
     }
-    throw Cr.NS_ERROR_ABORT;
+    throw Components.Exception("", Cr.NS_ERROR_ABORT);
   },
 
   onDataAvailable: function test_ODA() {

netwerk/test/unit/test_trr.js

@@ -215,7 +215,7 @@ class DNSListener {
     if (aIID.equals(Ci.nsIDNSListener) || aIID.equals(Ci.nsISupports)) {
       return this;
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   }
 
   // Implement then so we can await this as a promise.

services/common/tests/unit/head_helpers.js

@@ -189,7 +189,7 @@ var PACSystemSettings = {
   mainThreadOnly: true,
   PACURI: null,
   getProxyForURI: function getProxyForURI(aURI) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
 };
 

testing/marionette/components/marionette.js

@@ -566,7 +566,7 @@ const MarionetteFactory = {
 
   createInstance(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
 
     if (!this.instance_) {

testing/mochitest/BrowserTestUtils/content/content-about-page-utils.js

@@ -38,7 +38,7 @@ AboutPage.prototype = {
 
   createInstance(outer, iid) {
     if (outer !== null) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },

testing/modules/AppData.jsm

@@ -66,7 +66,7 @@ var makeFakeAppDir = function() {
         return appD.clone();
       }
 
-      throw Cr.NS_ERROR_FAILURE;
+      throw Components.Exception("", Cr.NS_ERROR_FAILURE);
     },
 
     QueryInterace(iid) {
@@ -77,7 +77,7 @@ var makeFakeAppDir = function() {
         return this;
       }
 
-      throw Cr.NS_ERROR_NO_INTERFACE;
+      throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
     },
   };
 

testing/modules/AppInfo.jsm

@@ -124,7 +124,7 @@ var updateAppInfo = function(options) {
   let factory = {
     createInstance(outer, iid) {
       if (outer != null) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
 
       return currentAppInfo.QueryInterface(iid);

testing/modules/MockRegistrar.jsm

@@ -57,7 +57,7 @@ var MockRegistrar = Object.freeze({
     let factory = {
       createInstance(outer, iid) {
         if (outer) {
-          throw Cr.NS_ERROR_NO_AGGREGATION;
+          throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
         }
 
         let wrappedMock;
@@ -78,7 +78,7 @@ var MockRegistrar = Object.freeze({
         return wrappedMock.QueryInterface(iid);
       },
       lockFactory(lock) {
-        throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+        throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
       },
       QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
     };

testing/modules/MockRegistry.jsm

@@ -50,7 +50,7 @@ class MockRegistry {
 
       get valueCount() {
         if (!this.values) {
-          throw Cr.NS_ERROR_FAILURE;
+          throw Components.Exception("", Cr.NS_ERROR_FAILURE);
         }
         return this.values.size;
       },
@@ -68,7 +68,7 @@ class MockRegistry {
 
       getValueName(index) {
         if (!this.values || index >= this.values.size) {
-          throw Cr.NS_ERROR_FAILURE;
+          throw Components.Exception("", Cr.NS_ERROR_FAILURE);
         }
         let names = Array.from(this.values.keys());
         return names[index];

testing/specialpowers/content/MockColorPicker.jsm

@@ -21,12 +21,12 @@ var newFactory = function(window) {
   return {
     createInstance(aOuter, aIID) {
       if (aOuter) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return new MockColorPickerInstance(window).QueryInterface(aIID);
     },
     lockFactory(aLock) {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
     QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
   };

testing/specialpowers/content/MockFilePicker.jsm

@@ -31,12 +31,12 @@ var newFactory = function(window) {
   return {
     createInstance(aOuter, aIID) {
       if (aOuter) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return new MockFilePickerInstance(window).QueryInterface(aIID);
     },
     lockFactory(aLock) {
-      throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+      throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
     },
     QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
   };

testing/specialpowers/content/MockPermissionPrompt.jsm

@@ -18,12 +18,12 @@ var newClassID = Cc["@mozilla.org/uuid-generator;1"]
 var newFactory = {
   createInstance(aOuter, aIID) {
     if (aOuter) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return new MockPermissionPromptInstance().QueryInterface(aIID);
   },
   lockFactory(aLock) {
-    throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+    throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
   },
   QueryInterface: ChromeUtils.generateQI([Ci.nsIFactory]),
 };

toolkit/actors/ControllersChild.jsm

@@ -24,7 +24,7 @@ class ControllersChild extends JSWindowActorChild {
             if (value.type == "long") {
               params.setLongValue(name, parseInt(value.value));
             } else {
-              throw Cr.NS_ERROR_NOT_IMPLEMENTED;
+              throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
             }
           }
           this.docShell.doCommandWithParams(data.cmd, params);

toolkit/components/extensions/test/mochitest/head_notifications.js

@@ -73,7 +73,7 @@ function mockServicesChromeScript() {
 
     createInstance: function(outer, iid) {
       if (outer != null) {
-        throw Cr.NS_ERROR_NO_AGGREGATION;
+        throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
       }
       return this.QueryInterface(iid);
     },

toolkit/components/extensions/test/mochitest/test_ext_webrequest_auth.html

@@ -81,7 +81,7 @@ add_task(async function test_webRequest_auth_nonblocking_forwardAuthProvider() {
         getInterface: ChromeUtils.generateQI([Ci.nsIAuthPromptProvider,
                                               Ci.nsIAuthPrompt2]),
         promptAuth(channel, level, authInfo) {
-          throw Cr.NS_ERROR_NO_INTERFACE;
+          throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
         },
         getAuthPrompt(reason, iid) {
           return this;
@@ -140,7 +140,7 @@ add_task(async function test_webRequest_auth_nonblocking_forwardAuthPrompt2() {
                                                 Ci.nsIAuthPrompt2]),
         getInterface: ChromeUtils.generateQI([Ci.nsIAuthPrompt2]),
         promptAuth(request, level, authInfo) {
-          throw Cr.NS_ERROR_NO_INTERFACE;
+          throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
         },
         asyncPromptAuth(request, callback, context, level, authInfo) {
           // We just cancel here, we're only ensuring that non-webrequest

toolkit/components/extensions/test/xpcshell/test_ext_networkStatus.js

@@ -17,7 +17,7 @@ var mockNetworkStatusService = {
 
   createInstance(outer, iiD) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iiD);
   },

toolkit/components/extensions/test/xpcshell/test_ext_notifications_incognito.js

@@ -41,7 +41,7 @@ const mockAlertsService = {
 
   createInstance(outer, iid) {
     if (outer != null) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },

toolkit/components/extensions/webrequest/WebRequest.jsm

@@ -317,7 +317,7 @@ var ChannelEventSink = {
   // nsIFactory implementation
   createInstance(outer, iid) {
     if (outer) {
-      throw Cr.NS_ERROR_NO_AGGREGATION;
+      throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
     }
     return this.QueryInterface(iid);
   },
@@ -341,7 +341,7 @@ class AuthRequestor {
     try {
       return this.notificationCallbacks.getInterface(iid);
     } catch (e) {}
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   }
 
   _getForwardedInterface(iid) {
@@ -390,7 +390,7 @@ class AuthRequestor {
         return callbacks.getInterface(Ci.nsIAuthPrompt2);
       } catch (e) {}
     }
-    throw Cr.NS_ERROR_NO_INTERFACE;
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
   }
 
   // nsIAuthPrompt2 asyncPromptAuth