Remove setSurfaceReady from WebLayerTreeView.

public/platform/WebLayerTreeView.h

 /*
  * Copyright (C) 2011 Google Inc. 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 30 matching lines @@
 class WebLayer;
 struct WebPoint;
 struct WebSelectionBound;
 
 class WebLayerTreeView {
 public:
     virtual ~WebLayerTreeView() { }
 
     // Initialization and lifecycle --------------------------------------
 
-    // Indicates that the compositing surface used by this WebLayerTreeView is ready to use.
-    // A WebLayerTreeView may request a context from its client before the surface is ready,
-    // but it won't attempt to use it.
-    virtual void setSurfaceReady() = 0;
-
     // Sets the root of the tree. The root is set by way of the constructor.
     virtual void setRootLayer(const WebLayer&) = 0;
     virtual void clearRootLayer() = 0;
 
 
     // View properties ---------------------------------------------------
 
     virtual void setViewportSize(const WebSize& deviceViewportSize) = 0;
     // Gives the viewport size in physical device pixels.
     virtual WebSize deviceViewportSize() const = 0;
@@ skipping 83 matching lines @@
     // Toggles continuous painting
     virtual void setContinuousPaintingEnabled(bool) { }
 
     // Toggles scroll bottleneck rects on the HUD layer
     virtual void setShowScrollBottleneckRects(bool) { }
 };
 
 } // namespace blink
 
 #endif // WebLayerTreeView_h