Timeline: add reference to root node of layer in Rasterize event

Source/core/inspector/InspectorTimelineAgent.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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
@@ skipping 124 matching lines @@
 
     void didInvalidateLayout(Frame*);
     bool willLayout(Frame*);
     void didLayout(RenderObject*);
 
     void didScheduleStyleRecalculation(Document*);
     bool willRecalculateStyle(Document*);
     void didRecalculateStyle();
     void didRecalculateStyleForElement();
 
-    void willPaint(Frame*);
+    void willPaint(RenderObject*);
     void didPaint(RenderObject*, GraphicsContext*, const LayoutRect&);
 
     void willScrollLayer(Frame*);
     void didScrollLayer();
 
     void willComposite();
     void didComposite();
 
     bool willWriteHTML(Document*, unsigned startLine);
     void didWriteHTML(unsigned endLine);
@@ skipping 80 matching lines @@
 
     void setHeapSizeStatistics(InspectorObject* record);
     void commitFrameRecord();
 
     void addRecordToTimeline(PassRefPtr<InspectorObject>, const String& type);
     void innerAddRecordToTimeline(PassRefPtr<InspectorObject>, const String& type);
     void clearRecordStack();
 
     void localToPageQuad(const RenderObject& renderer, const LayoutRect&, FloatQuad*);
     const TimelineTimeConverter& timeConverter() const { return m_timeConverter; }
-    int idForNode(Node*);
+    long long idForNode(Node*);
     void releaseNodeIds();
 
     double timestamp();
     Page* page();
 
     InspectorPageAgent* m_pageAgent;
     InspectorMemoryAgent* m_memoryAgent;
     InspectorDOMAgent* m_domAgent;
     TimelineTimeConverter m_timeConverter;
 
@@ skipping 20 matching lines @@
     InspectorType m_inspectorType;
     InspectorClient* m_client;
     WeakPtrFactory<InspectorTimelineAgent> m_weakFactory;
     RefPtr<TimelineTraceEventProcessor> m_traceEventProcessor;
     unsigned m_styleRecalcElementCounter;
 };
 
 } // namespace WebCore
 
 #endif // !defined(InspectorTimelineAgent_h)