Plumb CompositedDisplayList to WebViewImpl

public/web/WebView.h

 /*
  * Copyright (C) 2009, 2010, 2011, 2012 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 28 matching lines @@
 #include "../platform/WebVector.h"
 #include "WebDragOperation.h"
 #include "WebHistoryCommitType.h"
 #include "WebHistoryItem.h"
 #include "WebWidget.h"
 
 namespace blink {
 
 class WebAXObject;
 class WebAutofillClient;
+class WebCompositedDisplayList;
 class WebCredentialManagerClient;
 class WebDragData;
 class WebFrame;
 class WebHitTestResult;
 class WebPageOverlay;
 class WebPrerendererClient;
 class WebSettings;
 class WebSpellCheckClient;
 class WebString;
 class WebViewClient;
@@ skipping 386 matching lines @@
     virtual void setShowPaintRects(bool) = 0;
     virtual void setShowFPSCounter(bool) = 0;
     virtual void setShowScrollBottleneckRects(bool) = 0;
 
     // Visibility -----------------------------------------------------------
 
     // Sets the visibility of the WebView.
     virtual void setVisibilityState(WebPageVisibilityState visibilityState,
                                     bool isInitialState) { }
 
+    // Graphics -------------------------------------------------------------
+
+    virtual WebCompositedDisplayList* compositedDisplayList() { return nullptr; }
+
     // PageOverlay ----------------------------------------------------------
 
     // Overlay this WebView with a solid color.
     virtual void setPageOverlayColor(WebColor) = 0;
 
 
     // i18n -----------------------------------------------------------------
 
     // Inform the WebView that the accept languages have changed.
     // If the WebView wants to get the accept languages value, it will have
@@ skipping 10 matching lines @@
     // context's ability to deal with that failure gracefully can be tested.
     virtual void forceNextDrawingBufferCreationToFail() = 0;
 
 protected:
     ~WebView() {}
 };
 
 } // namespace blink
 
 #endif