DevTools: added support for image url & node in tracing-based timeline

Source/core/inspector/InspectorTraceEvents.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef InspectorTraceEvents_h
 #define InspectorTraceEvents_h
 
 #include "platform/EventTracer.h"
 #include "platform/TraceEvent.h"
 #include "wtf/Forward.h"
 
 namespace WebCore {
 
 class Document;
 class ExecutionContext;
 class FrameView;
 class GraphicsContext;
 class GraphicsLayer;
 class KURL;
 class LayoutRect;
 class LocalFrame;
 class RenderObject;
+class RenderImage;
 class ResourceRequest;
 class ResourceResponse;
 class ScriptSourceCode;
 class ScriptCallStack;
 class XMLHttpRequest;
 
 class InspectorLayoutEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> beginData(FrameView*);
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> endData(RenderObject* rootForThisLayout);
@@ skipping 62 matching lines @@
 class InspectorXhrLoadEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(ExecutionContext*, XMLHttpRequest*);
 };
 
 class InspectorPaintEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(RenderObject*, const LayoutRect& clipRect, const GraphicsLayer*);
 };
 
+class InspectorPaintImageEvent {
+public:
+    static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const RenderImage&);
+};
+
 class InspectorMarkLoadEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(LocalFrame*);
 };
 
 class InspectorScrollLayerEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(RenderObject*);
 };
 
@@ skipping 14 matching lines @@
 
 class InspectorCallStackEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> currentCallStack();
 };
 
 } // namespace WebCore
 
 
 #endif // !defined(InspectorTraceEvents_h)