Update cc snapshot to r127918

cc/CCProxy.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CCProxy_h
 #define CCProxy_h
 
 #include "IntRect.h"
 #include <public/WebCompositorOutputSurface.h>
 #include <wtf/Noncopyable.h>
@@ skipping 41 matching lines @@
 
     virtual void setVisible(bool) = 0;
 
     // Attempts to initialize the layer renderer. Returns false if the context isn't usable for compositing.
     virtual bool initializeRenderer() = 0;
 
     // Attempts to recreate the context and layer renderer after a context lost. Returns false if the renderer couldn't be
     // reinitialized.
     virtual bool recreateContext() = 0;
 
-    virtual int compositorIdentifier() const = 0;
-
     virtual void implSideRenderingStats(CCRenderingStats&) = 0;
 
     virtual const RendererCapabilities& rendererCapabilities() const = 0;
 
     virtual void setNeedsAnimate() = 0;
     virtual void setNeedsCommit() = 0;
     virtual void setNeedsRedraw() = 0;
 
     virtual void didAddAnimation() = 0;
 
@@ skipping 46 matching lines @@
 #if !ASSERT_DISABLED
         ASSERT(CCProxy::isMainThreadBlocked());
         CCProxy::setMainThreadBlocked(false);
 #endif
     }
 };
 
 }
 
 #endif