Fix missing finalizeFrame barriers in WebGL animations

third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h

Index: third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h
diff --git a/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h b/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h
index b420788e72f6fa6d018efc27dcac81a464d22691..7fea769da4afd12a19447739c96e791fd8279c68 100644
--- a/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h
+++ b/third_party/WebKit/Source/core/html/canvas/CanvasRenderingContext.h
@@ -134,6 +134,8 @@ class CORE_EXPORT CanvasRenderingContext
   };
   virtual void loseContext(LostContextMode) {}
 
+  virtual void finalizeFrame() {}

[Ken Russell (switch to Gerrit), 2017/02/18 00:08:01]

Please document this new public method. Who should call it and when?

[Justin Novosad, 2017/02/21 18:03:28]

Done.

+
   // WebThread::TaskObserver implementation
   void didProcessTask() override;
   void willProcessTask() final {}
@@ -157,7 +159,6 @@ class CORE_EXPORT CanvasRenderingContext
   virtual String getIdFromControl(const Element* element) { return String(); }
   virtual bool isAccelerationOptimalForCanvasContent() const { return true; }
   virtual void resetUsageTracking(){};
-  virtual void incrementFrameCount(){};
 
   // WebGL-specific interface
   virtual bool is3d() const { return false; }