DevTools: use per-LocalFrame instrumenting agents instead of per-Page ones.

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 24 matching lines @@
 #include "core/InspectorTypeBuilder.h"
 #include "core/inspector/InspectorBaseAgent.h"
 #include "core/rendering/RenderLayer.h"
 #include "platform/Timer.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
+class InspectorPageAgent;
 class PictureSnapshot;
-class Page;
 class RenderLayerCompositor;
 
 typedef String ErrorString;
 
 class InspectorLayerTreeAgent final : public InspectorBaseAgent<InspectorLayerTreeAgent>, public InspectorBackendDispatcher::LayerTreeCommandHandler {
 public:
-    static PassOwnPtrWillBeRawPtr<InspectorLayerTreeAgent> create(Page* page)
+    static PassOwnPtrWillBeRawPtr<InspectorLayerTreeAgent> create(InspectorPageAgent* pageAgent)
     {
-        return adoptPtrWillBeNoop(new InspectorLayerTreeAgent(page));
+        return adoptPtrWillBeNoop(new InspectorLayerTreeAgent(pageAgent));
     }
     virtual ~InspectorLayerTreeAgent();
     virtual void trace(Visitor*) override;
 
     virtual void setFrontend(InspectorFrontend*) override;
     virtual void clearFrontend() override;
     virtual void restore() override;
 
     // Called from InspectorController
     void willAddPageOverlay(const GraphicsLayer*);
@@ skipping 13 matching lines @@
     virtual void replaySnapshot(ErrorString*, const String& snapshotId, const int* fromStep, const int* toStep, const double* scale, String* dataURL) override;
     virtual void profileSnapshot(ErrorString*, const String& snapshotId, const int* minRepeatCount, const double* minDuration, const RefPtr<JSONObject>* clipRect, RefPtr<TypeBuilder::Array<TypeBuilder::Array<double> > >&) override;
     virtual void snapshotCommandLog(ErrorString*, const String& snapshotId, RefPtr<TypeBuilder::Array<JSONObject> >&) override;
 
     // Called by other agents.
     PassRefPtr<TypeBuilder::Array<TypeBuilder::LayerTree::Layer> > buildLayerTree();
 
 private:
     static unsigned s_lastSnapshotId;
 
-    explicit InspectorLayerTreeAgent(Page*);
+    explicit InspectorLayerTreeAgent(InspectorPageAgent*);
 
     GraphicsLayer* rootGraphicsLayer();
 
     RenderLayerCompositor* renderLayerCompositor();
     GraphicsLayer* layerById(ErrorString*, const String& layerId);
     const PictureSnapshot* snapshotById(ErrorString*, const String& snapshotId);
 
     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;
-    RawPtrWillBeMember<Page> m_page;
+    RawPtrWillBeMember<InspectorPageAgent> m_pageAgent;
     Vector<int, 2> m_pageOverlayLayerIds;
 
     typedef HashMap<String, RefPtr<PictureSnapshot> > SnapshotById;
     SnapshotById m_snapshotById;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorLayerTreeAgent_h)