Revert of Use element id's for animations

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 16 matching lines @@
 #ifndef GraphicsLayer_h
 #define GraphicsLayer_h
 
 #include "cc/layers/layer_client.h"
 #include "platform/PlatformExport.h"
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/FloatPoint3D.h"
 #include "platform/geometry/FloatSize.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/graphics/Color.h"
-#include "platform/graphics/CompositorElementId.h"
 #include "platform/graphics/ContentLayerDelegate.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/graphics/GraphicsLayerDebugInfo.h"
 #include "platform/graphics/ImageOrientation.h"
 #include "platform/graphics/PaintInvalidationReason.h"
 #include "platform/graphics/filters/FilterOperations.h"
 #include "platform/graphics/paint/CachedDisplayItem.h"
 #include "platform/graphics/paint/DisplayItemClient.h"
 #include "platform/graphics/paint/PaintController.h"
@@ skipping 189 matching lines @@
     void didScroll() override;
 
     // cc::LayerClient implementation.
     std::unique_ptr<base::trace_event::ConvertableToTraceFormat> TakeDebugInfo(cc::Layer*) override;
 
     PaintController& getPaintController();
 
     // Exposed for tests.
     WebLayer* contentsLayer() const { return m_contentsLayer; }
 
-    void setElementId(const CompositorElementId&);
+    void setElementId(uint64_t);
     void setCompositorMutableProperties(uint32_t);
 
     static void setDrawDebugRedFillForTesting(bool);
     ContentLayerDelegate* contentLayerDelegateForTesting() const { return m_contentLayerDelegate.get(); }
 
     // DisplayItemClient methods
     String debugName() const final { return m_client->debugName(this); }
     LayoutRect visualRect() const override;
 
     void setHasWillChangeTransformHint(bool);
@@ skipping 111 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