Bug 1673710 - Remove PBrowser.NotifyCompositorTransaction. r=sefeng

It's dead.

Differential Revision: https://phabricator.services.mozilla.com/D94881

dom/ipc/BrowserChild.cpp

@@ -310,7 +310,6 @@ BrowserChild::BrowserChild(ContentChild* aManager, const TabId& aTabId,
       mLayersId{0},
       mEffectsInfo{EffectsInfo::FullyHidden()},
       mDidFakeShow(false),
-      mNotified(false),
       mTriedBrowserInit(false),
       mOrientation(hal::eScreenOrientation_PortraitPrimary),
       mIgnoreKeyPressEvent(false),
@@ -2820,13 +2819,6 @@ void BrowserChild::InitAPZState() {
   cbc->SendPAPZConstructor(apzChild, mLayersId);
 }
 
-void BrowserChild::NotifyPainted() {
-  if (!mNotified) {
-    SendNotifyCompositorTransaction();
-    mNotified = true;
-  }
-}
-
 IPCResult BrowserChild::RecvUpdateEffects(const EffectsInfo& aEffects) {
   bool needInvalidate = false;
   if (mEffectsInfo.IsVisible() && aEffects.IsVisible() &&

dom/ipc/BrowserChild.h

@@ -449,8 +449,6 @@ class BrowserChild final : public nsMessageManagerScriptExecutor,
 
   void SetBackgroundColor(const nscolor& aColor);
 
-  void NotifyPainted();
-
   MOZ_CAN_RUN_SCRIPT_BOUNDARY virtual mozilla::ipc::IPCResult RecvUpdateEffects(
       const EffectsInfo& aEffects);
 
@@ -821,7 +819,6 @@ class BrowserChild final : public nsMessageManagerScriptExecutor,
   Maybe<bool> mLayersConnected;
   EffectsInfo mEffectsInfo;
   bool mDidFakeShow;
-  bool mNotified;
   bool mTriedBrowserInit;
   hal::ScreenOrientation mOrientation;
 

dom/ipc/BrowserParent.cpp

@@ -3700,28 +3700,6 @@ mozilla::ipc::IPCResult BrowserParent::RecvRemotePaintIsReady() {
   return IPC_OK();
 }
 
-mozilla::ipc::IPCResult BrowserParent::RecvNotifyCompositorTransaction() {
-  RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
-
-  if (!frameLoader) {
-    return IPC_OK();
-  }
-
-  nsIFrame* docFrame = frameLoader->GetPrimaryFrameOfOwningContent();
-
-  if (!docFrame) {
-    // Bad, but nothing we can do about it (XXX/cjones: or is there?
-    // maybe bug 589337?).  When the new frame is created, we'll
-    // probably still be the current render frame and will get to draw
-    // our content then.  Or, we're shutting down and this update goes
-    // to /dev/null.
-    return IPC_OK();
-  }
-
-  docFrame->InvalidateLayer(DisplayItemType::TYPE_REMOTE);
-  return IPC_OK();
-}
-
 mozilla::ipc::IPCResult BrowserParent::RecvRemoteIsReadyToHandleInputEvents() {
   // When enabling input event prioritization, input events may preempt other
   // normal priority IPC messages. To prevent the input events preempt

dom/ipc/BrowserParent.h

@@ -754,8 +754,6 @@ class BrowserParent final : public PBrowserParent,
 
   mozilla::ipc::IPCResult RecvRemotePaintIsReady();
 
-  mozilla::ipc::IPCResult RecvNotifyCompositorTransaction();
-
   mozilla::ipc::IPCResult RecvRemoteIsReadyToHandleInputEvents();
 
   mozilla::ipc::IPCResult RecvPaintWhileInterruptingJSNoOp(

dom/ipc/PBrowser.ipdl

@@ -638,11 +638,6 @@ parent:
      */
     async RemotePaintIsReady();
 
-    /**
-     * Child informs the parent that a compositor transaction has ocurred.
-     */
-    async NotifyCompositorTransaction();
-
     /**
      * Child informs the parent that the content is ready to handle input
      * events. This is sent when the BrowserChild is created.