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

Source/core/inspector/InspectorInstrumentation.cpp

Index: Source/core/inspector/InspectorInstrumentation.cpp
diff --git a/Source/core/inspector/InspectorInstrumentation.cpp b/Source/core/inspector/InspectorInstrumentation.cpp
index 6631f98f4a3be3d5b98f6c932e23e0a6b6fbfe0e..0d65f6e89e79a524caf1177fd4ac6a60e006d2a2 100644
--- a/Source/core/inspector/InspectorInstrumentation.cpp
+++ b/Source/core/inspector/InspectorInstrumentation.cpp
@@ -79,8 +79,6 @@
 #include <wtf/StdLibExtras.h>
 #include <wtf/text/CString.h>
 
-#include "core/platform/chromium/TraceEvent.h"
-
 namespace WebCore {
 
 static const char* const requestAnimationFrameEventName = "requestAnimationFrame";
@@ -486,10 +484,8 @@ void didDispatchXHRLoadEventImpl(const InspectorInstrumentationCookie& cookie)
 
 void willPaintImpl(InstrumentingAgents* instrumentingAgents, RenderObject* renderer)
 {
-    TRACE_EVENT_INSTANT1("instrumentation", InstrumentationEvents::Paint, InstrumentationEventArguments::PageId, reinterpret_cast<unsigned long long>(renderer->frame()->page()));
-
     if (InspectorTimelineAgent* timelineAgent = instrumentingAgents->inspectorTimelineAgent())
-        timelineAgent->willPaint(renderer->frame());
+        timelineAgent->willPaint(renderer);
 }
 
 void didPaintImpl(InstrumentingAgents* instrumentingAgents, RenderObject* renderer, GraphicsContext* context, const LayoutRect& rect)
@@ -1335,6 +1331,7 @@ const char BeginFrame[] = "BeginFrame";
 namespace InstrumentationEventArguments {
 const char LayerId[] = "layerId";
 const char PageId[] = "pageId";
+const char NodeId[] = "nodeId";
 };
 
 } // namespace WebCore