DevTools: hide page overlay layers in LayerTreeAgent

Source/core/inspector/InspectorLayerTreeAgent.h

 /*
  * Copyright (C) 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 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.
@@ skipping 45 matching lines @@
     static PassOwnPtr<InspectorLayerTreeAgent> create(InspectorDOMAgent* domAgent, Page* page)
     {
         return adoptPtr(new InspectorLayerTreeAgent(domAgent, page));
     }
     virtual ~InspectorLayerTreeAgent();
 
     virtual void setFrontend(InspectorFrontend*) OVERRIDE;
     virtual void clearFrontend() OVERRIDE;
     virtual void restore() OVERRIDE;
 
+    // Called from InspectorController
+    void willAddPageOverlay(const GraphicsLayer*);
+    void didRemovePageOverlay(const GraphicsLayer*);
+
     // Called from InspectorInstrumentation
     void layerTreeDidChange();
     void didPaint(RenderObject*, const GraphicsLayer*, GraphicsContext*, const LayoutRect&);
 
     // Called from the front-end.
     virtual void enable(ErrorString*) OVERRIDE;
     virtual void disable(ErrorString*) OVERRIDE;
     virtual void compositingReasons(ErrorString*, const String& layerId, RefPtr<TypeBuilder::Array<String> >&) OVERRIDE;
     virtual void makeSnapshot(ErrorString*, const String& layerId, String* snapshotId) OVERRIDE;
     virtual void releaseSnapshot(ErrorString*, const String& snapshotId) OVERRIDE;
     virtual void replaySnapshot(ErrorString*, const String& snapshotId, const int* fromStep, const int* toStep, String* dataURL) OVERRIDE;
     virtual void profileSnapshot(ErrorString*, const String& snapshotId, const int* minRepeatCount, const double* minDuration, RefPtr<TypeBuilder::Array<TypeBuilder::Array<double> > >&) OVERRIDE;
 
 private:
     static unsigned s_lastSnapshotId;
 
     InspectorLayerTreeAgent(InspectorDOMAgent*, Page*);
 
     RenderLayerCompositor* renderLayerCompositor();
     GraphicsLayer* layerById(ErrorString*, const String& layerId);
     const LayerSnapshot* snapshotById(ErrorString*, const String& snapshotId);
     PassRefPtr<TypeBuilder::Array<TypeBuilder::LayerTree::Layer> > buildLayerTree();
 
     typedef HashMap<int, int> LayerIdToNodeIdMap;
     void buildLayerIdToNodeIdMap(RenderLayer*, LayerIdToNodeIdMap&);
+    void gatherGraphicsLayers(GraphicsLayer*, HashMap<int, int>& layerIdToNodeIdMap, RefPtr<TypeBuilder::Array<TypeBuilder::LayerTree::Layer> >&);
     int idForNode(Node*);
 
     InspectorFrontend::LayerTree* m_frontend;
     Page* m_page;
     InspectorDOMAgent* m_domAgent;
+    Vector<int, 2> m_pageOverlayLayerIds;
 
     typedef HashMap<String, LayerSnapshot> SnapshotById;
     SnapshotById m_snapshotById;
 };
 
 } // namespace WebCore
 
 
 #endif // !defined(InspectorLayerTreeAgent_h)