Fix link highlights on links that contain images.

Source/web/LinkHighlight.h

 /*
  * Copyright (C) 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:
  *
  * 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 17 matching lines @@
 
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/IntPoint.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/Path.h"
 #include "public/platform/WebAnimationDelegate.h"
 #include "public/platform/WebContentLayer.h"
 #include "public/platform/WebContentLayerClient.h"
 #include "public/platform/WebLayer.h"
 #include "wtf/OwnPtr.h"
+#include "wtf/Vector.h"
 
 namespace WebCore {
 class RenderLayer;
+class RenderObject;
 class Node;
 }
 
 namespace blink {
 
 struct WebFloatRect;
 struct WebRect;
 class WebViewImpl;
 
 class LinkHighlight : public WebContentLayerClient, public WebAnimationDelegate, WebCore::LinkHighlightClient {
@@ skipping 17 matching lines @@
     virtual void invalidate() OVERRIDE;
     virtual WebLayer* layer() OVERRIDE;
     virtual void clearCurrentGraphicsLayer() OVERRIDE;
 
     WebCore::GraphicsLayer* currentGraphicsLayerForTesting() const { return m_currentGraphicsLayer; }
 
 private:
     LinkHighlight(WebCore::Node*, WebViewImpl*);
 
     void releaseResources();
+    void computeQuads(WebCore::RenderObject*, WTF::Vector<WebCore::FloatQuad>&) const;
 
     WebCore::RenderLayer* computeEnclosingCompositingLayer();
     void clearGraphicsLayerLinkHighlightPointer();
     // This function computes the highlight path, and returns true if it has changed
     // size since the last call to this function.
     bool computeHighlightLayerPathAndPosition(WebCore::RenderLayer*);
 
     OwnPtr<WebContentLayer> m_contentLayer;
     OwnPtr<WebLayer> m_clipLayer;
     WebCore::Path m_path;
 
     RefPtr<WebCore::Node> m_node;
     WebViewImpl* m_owningWebViewImpl;
     WebCore::GraphicsLayer* m_currentGraphicsLayer;
 
     bool m_geometryNeedsUpdate;
     bool m_isAnimating;
     double m_startTime;
 };
 
 } // namespace blink
 
 #endif