Bug 1859625 Part 3: Stop sending the GetOutputColorProfileData message. r=ipc-reviewers,mccr8

Differential Revision: https://phabricator.services.mozilla.com/D193139

dom/ipc/ContentParent.cpp

@@ -5914,13 +5914,6 @@ mozilla::ipc::IPCResult ContentParent::RecvShutdownPerfStats(
   return IPC_OK();
 }
 
-mozilla::ipc::IPCResult ContentParent::RecvGetOutputColorProfileData(
-    nsTArray<uint8_t>* aOutputColorProfileData) {
-  (*aOutputColorProfileData) =
-      gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfileData();
-  return IPC_OK();
-}
-
 mozilla::ipc::IPCResult ContentParent::RecvGetFontListShmBlock(
     const uint32_t& aGeneration, const uint32_t& aIndex,
     base::SharedMemoryHandle* aOut) {

dom/ipc/ContentParent.h

@@ -1133,9 +1133,6 @@ class ContentParent final : public PContentParent,
 
   mozilla::ipc::IPCResult RecvShutdownPerfStats(const nsACString& aPerfStats);
 
-  mozilla::ipc::IPCResult RecvGetOutputColorProfileData(
-      nsTArray<uint8_t>* aOutputColorProfileData);
-
   mozilla::ipc::IPCResult RecvGetFontListShmBlock(
       const uint32_t& aGeneration, const uint32_t& aIndex,
       base::SharedMemoryHandle* aOut);

dom/ipc/PContent.ipdl

@@ -1330,15 +1330,6 @@ parent:
      */
     async ShutdownPerfStats(nsCString aPerfStats);
 
-    /**
-     * Request a buffer containing the contents of the output color profile.
-     * If set, this is the file pointed to by
-     * gfx.color_management.display_profile, otherwise it contains a
-     * platform-specific default
-     */
-    sync GetOutputColorProfileData()
-        returns (uint8_t[] aOutputColorProfileData);
-
     /**
      * A shared font list (see gfx/thebes/SharedFontList.*) contains a list
      * of shared-memory blocks that are used to store all the font list data.

gfx/thebes/gfxPlatform.cpp

@@ -174,6 +174,7 @@ gfxPlatform* gPlatform = nullptr;
 static bool gEverInitialized = false;
 
 const ContentDeviceData* gContentDeviceInitData = nullptr;
+Maybe<nsTArray<uint8_t>> gCMSOutputProfileData;
 
 Atomic<bool, MemoryOrdering::ReleaseAcquire> gfxPlatform::gCMSInitialized;
 CMSMode gfxPlatform::gCMSMode = CMSMode::Off;
@@ -2060,6 +2061,10 @@ const mozilla::gfx::ContentDeviceData* gfxPlatform::GetInitContentDeviceData() {
   return gContentDeviceInitData;
 }
 
+Maybe<nsTArray<uint8_t>>& gfxPlatform::GetCMSOutputProfileData() {
+  return gCMSOutputProfileData;
+}
+
 CMSMode GfxColorManagementMode() {
   const auto mode = StaticPrefs::gfx_color_management_mode();
   if (mode >= 0 && mode < UnderlyingValue(CMSMode::AllCount)) {
@@ -3888,6 +3893,8 @@ void gfxPlatform::ImportContentDeviceData(
   const DevicePrefs& prefs = aData.prefs();
   gfxConfig::Inherit(Feature::HW_COMPOSITING, prefs.hwCompositing());
   gfxConfig::Inherit(Feature::OPENGL_COMPOSITING, prefs.oglCompositing());
+
+  gCMSOutputProfileData = Some(aData.cmsOutputProfileData().Clone());
 }
 
 void gfxPlatform::BuildContentDeviceData(

gfx/thebes/gfxPlatform.h

@@ -888,6 +888,13 @@ class gfxPlatform : public mozilla::layers::MemoryPressureListener {
    */
   const mozilla::gfx::ContentDeviceData* GetInitContentDeviceData();
 
+  /**
+   * If inside a child process and have ever received a
+   * SetXPCOMProcessAttributes message, this contains the cmsOutputProfileData
+   * from that message.
+   */
+  mozilla::Maybe<nsTArray<uint8_t>>& GetCMSOutputProfileData();
+
   /**
    * Increase the global device counter after a device has been removed/reset.
    */

gfx/thebes/gfxPlatformGtk.cpp

@@ -560,23 +560,16 @@ nsTArray<uint8_t> gfxPlatformGtk::GetPlatformCMSOutputProfileData() {
   }
 
   if (XRE_IsContentProcess()) {
-    MOZ_ASSERT(NS_IsMainThread());
-    // This will be passed in during InitChild so we can avoid sending a
-    // sync message back to the parent during init.
-    const mozilla::gfx::ContentDeviceData* contentDeviceData =
-        GetInitContentDeviceData();
-    if (contentDeviceData) {
-      // On Windows, we assert that the profile isn't empty, but on
-      // Linux it can legitimately be empty if the display isn't
-      // calibrated.  Thus, no assertion here.
-      return contentDeviceData->cmsOutputProfileData().Clone();
+    auto& cmsOutputProfileData = GetCMSOutputProfileData();
+    // We should have set our profile data when we received our initial
+    // ContentDeviceData.
+    MOZ_ASSERT(cmsOutputProfileData.isSome(),
+               "Should have created output profile data when we received "
+               "initial content device data.");
+    if (cmsOutputProfileData.isSome()) {
+      return cmsOutputProfileData.ref().Clone();
     }
-
-    // Otherwise we need to ask the parent for the updated color profile
-    mozilla::dom::ContentChild* cc = mozilla::dom::ContentChild::GetSingleton();
-    nsTArray<uint8_t> result;
-    Unused << cc->SendGetOutputColorProfileData(&result);
-    return result;
+    return nsTArray<uint8_t>();
   }
 
   if (!mIsX11Display) {

gfx/thebes/gfxWindowsPlatform.cpp

@@ -986,20 +986,21 @@ void gfxWindowsPlatform::CheckForContentOnlyDeviceReset() {
 
 nsTArray<uint8_t> gfxWindowsPlatform::GetPlatformCMSOutputProfileData() {
   if (XRE_IsContentProcess()) {
-    // This will be passed in during InitChild so we can avoid sending a
-    // sync message back to the parent during init.
-    const mozilla::gfx::ContentDeviceData* contentDeviceData =
-        GetInitContentDeviceData();
-    if (contentDeviceData) {
-      MOZ_ASSERT(!contentDeviceData->cmsOutputProfileData().IsEmpty());
-      return contentDeviceData->cmsOutputProfileData().Clone();
-    }
+    auto& cmsOutputProfileData = GetCMSOutputProfileData();
+    // We should have set our profile data when we received our initial
+    // ContentDeviceData.
+    MOZ_ASSERT(cmsOutputProfileData.isSome(),
+               "Should have created output profile data when we received "
+               "initial content device data.");
 
-    // Otherwise we need to ask the parent for the updated color profile
-    mozilla::dom::ContentChild* cc = mozilla::dom::ContentChild::GetSingleton();
-    nsTArray<uint8_t> result;
-    Unused << cc->SendGetOutputColorProfileData(&result);
-    return result;
+    // If we have data, it should not be empty.
+    MOZ_ASSERT_IF(cmsOutputProfileData.isSome(),
+                  !cmsOutputProfileData->IsEmpty());
+
+    if (cmsOutputProfileData.isSome()) {
+      return cmsOutputProfileData.ref().Clone();
+    }
+    return nsTArray<uint8_t>();
   }
 
   return GetPlatformCMSOutputProfileData_Impl();
@@ -1784,9 +1785,6 @@ void gfxWindowsPlatform::ImportContentDeviceData(
     DeviceManagerDx* dm = DeviceManagerDx::Get();
     dm->ImportDeviceInfo(aData.d3d11());
   }
-
-  // aData->cmsOutputProfileData() will be read during color profile init,
-  // not as part of this import function
 }
 
 void gfxWindowsPlatform::BuildContentDeviceData(ContentDeviceData* aOut) {

ipc/ipdl/sync-messages.ini

@@ -68,8 +68,6 @@ description = legacy sync IPC - please add detailed description
 description = legacy sync IPC - please add detailed description
 [PContent::EndDriverCrashGuard]
 description = legacy sync IPC - please add detailed description
-[PContent::GetOutputColorProfileData]
-description = Retrieve the contents of the output color profile file
 [PContent::GetFontListShmBlock]
 description = for bug 1514869 - layout code needs synchronous access to font list, but this is used only once per block, after which content directly reads the shared memory
 [PContent::InitializeFamily]