compositor-worker: plumb element id and mutable properties

third_party/WebKit/Source/platform/graphics/GraphicsLayer.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 241 matching lines @@
     void notifyAnimationFinished(double monotonicTime, int group) override;
 
     // WebLayerScrollClient implementation.
     void didScroll() override;
 
     PaintController* paintController() override;
 
     // Exposed for tests.
     WebLayer* contentsLayer() const { return m_contentsLayer; }
 
+    void setElementId(uint64_t);
+    void setMutableProperties(uint32_t);
+
     static void setDrawDebugRedFillForTesting(bool);
     ContentLayerDelegate* contentLayerDelegateForTesting() const { return m_contentLayerDelegate.get(); }
 
 #ifndef NDEBUG
     DisplayItemClient displayItemClient() const { return toDisplayItemClient(this); }
     String debugName() const { return m_client->debugName(this) + " debug red fill"; }
 #endif
 
 protected:
     String debugName(WebLayer*) const;
@@ skipping 103 matching lines @@
 };
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the blink namespace for ease of invocation from gdb.
 void PLATFORM_EXPORT showGraphicsLayerTree(const blink::GraphicsLayer*);
 #endif
 
 #endif // GraphicsLayer_h