Create a GraphicsContext from a DisplayList.

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 10 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef LinkHighlight_h
 #define LinkHighlight_h
 
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/IntPoint.h"
+#include "platform/graphics/DisplayList.h"

[esprehn, 2014/09/06 01:29:17]

Can we forward declare this instead?

[Stephen Chennney, 2014/09/08 17:42:09]

Done.

 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/Path.h"
 #include "public/platform/WebCompositorAnimationDelegate.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 blink {
 
+class Node;
 class RenderLayer;
 class RenderObject;
-class Node;
 struct WebFloatRect;
 struct WebRect;
 class WebViewImpl;
 
 class LinkHighlight FINAL : public WebContentLayerClient, public WebCompositorAnimationDelegate, blink::LinkHighlightClient {
 public:
     static PassOwnPtr<LinkHighlight> create(Node*, WebViewImpl*);
     virtual ~LinkHighlight();
 
     WebContentLayer* contentLayer();
@@ skipping 24 matching lines @@
 
     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(RenderLayer*);
 
     OwnPtr<WebContentLayer> m_contentLayer;
     OwnPtr<WebLayer> m_clipLayer;
     Path m_path;
+    RefPtr<DisplayList> m_displayList;
 
     RefPtrWillBePersistent<Node> m_node;
     WebViewImpl* m_owningWebViewImpl;
     GraphicsLayer* m_currentGraphicsLayer;
 
     bool m_geometryNeedsUpdate;
     bool m_isAnimating;
     double m_startTime;
 };
 
 } // namespace blink
 
 #endif