Oilpan: Prepare moving InspectorController and InspectorAgents to oilpan.

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 33 matching lines @@
 
 class GraphicsContextSnapshot;
 class InstrumentingAgents;
 class Page;
 class RenderLayerCompositor;
 
 typedef String ErrorString;
 
 class InspectorLayerTreeAgent FINAL : public InspectorBaseAgent<InspectorLayerTreeAgent>, public InspectorBackendDispatcher::LayerTreeCommandHandler {
 public:
-    static PassOwnPtr<InspectorLayerTreeAgent> create(Page* page)
+    static PassOwnPtrWillBeRawPtr<InspectorLayerTreeAgent> create(Page* page)
     {
-        return adoptPtr(new InspectorLayerTreeAgent(page));
+        return adoptPtrWillBeNoop(new InspectorLayerTreeAgent(page));
     }
     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*);
     void didRemovePageOverlay(const GraphicsLayer*);
 
     // Called from InspectorInstrumentation
@@ skipping 22 matching lines @@
     RenderLayerCompositor* renderLayerCompositor();
     GraphicsLayer* layerById(ErrorString*, const String& layerId);
     const GraphicsContextSnapshot* 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;
-    Page* m_page;
+    RawPtrWillBeMember<Page> m_page;
     Vector<int, 2> m_pageOverlayLayerIds;
 
     typedef HashMap<String, RefPtr<GraphicsContextSnapshot> > SnapshotById;
     SnapshotById m_snapshotById;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorLayerTreeAgent_h)