Get rid of the remaining uses of GraphicsLayer.

sky/engine/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 224 matching lines @@
 
     void updateMainFrameLayoutSize();
 
     // Returns the input event we're currently processing. This is used in some
     // cases where the WebCore DOM event doesn't have the information we need.
     static const WebInputEvent* currentInputEvent()
     {
         return m_currentInputEvent;
     }
 
-    GraphicsLayer* rootGraphicsLayer();
-    void setRootGraphicsLayer(GraphicsLayer*);
-    GraphicsLayerFactory* graphicsLayerFactory() const;
     void scheduleAnimation();
 
     virtual void setVisibilityState(WebPageVisibilityState, bool) override;
 
     // Returns true if the event leads to scrolling.
     static bool mapKeyCodeForScroll(
         int keyCode,
         ScrollDirection*,
         ScrollGranularity*);
 
@@ skipping 135 matching lines @@
 
     // Whether the user can press tab to focus links.
     bool m_tabsToLinks;
 
     // If set, the (plugin) node which has mouse capture.
     RefPtr<Node> m_mouseCaptureNode;
     RefPtr<UserGestureToken> m_mouseCaptureGestureToken;
 
     IntRect m_rootLayerScrollDamage;
     WebLayer* m_rootLayer;
-    GraphicsLayer* m_rootGraphicsLayer;
-    GraphicsLayer* m_rootTransformLayer;
-    OwnPtr<GraphicsLayerFactory> m_graphicsLayerFactory;
     bool m_matchesHeuristicsForGpuRasterization;
     // If true, the graphics context is being restored.
     bool m_recreatingGraphicsContext;
     static const WebInputEvent* m_currentInputEvent;
 
     OwnPtr<WebActiveGestureAnimation> m_gestureAnimation;
     WebPoint m_positionOnFlingStart;
     WebPoint m_globalPositionOnFlingStart;
     int m_flingModifier;
     bool m_flingSourceDevice;
@@ skipping 10 matching lines @@
     bool m_userGestureObserved;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_WEB_WEBVIEWIMPL_H_