DevTools: Put EventDispatch type into the data object.

Source/core/inspector/InspectorTraceEvents.h

Index: Source/core/inspector/InspectorTraceEvents.h
diff --git a/Source/core/inspector/InspectorTraceEvents.h b/Source/core/inspector/InspectorTraceEvents.h
index a977b2732ba1562978085ac7eee1e7994cb9c764..31d0f69e1a57dfd3e57fe91557f02d8f555fb34c 100644
--- a/Source/core/inspector/InspectorTraceEvents.h
+++ b/Source/core/inspector/InspectorTraceEvents.h
@@ -12,6 +12,7 @@
 namespace WebCore {
 
 class Document;
+class Event;
 class ExecutionContext;
 class FrameView;
 class GraphicsContext;
@@ -138,6 +139,11 @@ public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> currentCallStack();
 };
 
+class InspectorEventDispatchEvent {
+public:
+    static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const Event*);
+};
+
 } // namespace WebCore