DevTools: Put EventDispatch type into the data object.

Source/core/events/EventDispatcher.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 98 matching lines @@
 
 #ifndef NDEBUG
     ASSERT(!m_eventDispatched);
     m_eventDispatched = true;
 #endif
 
     m_event->setTarget(EventPath::eventTargetRespectingTargetRules(m_node.get()));
     ASSERT(!NoEventDispatchAssertion::isEventDispatchForbidden());
     ASSERT(m_event->target());
     WindowEventContext windowEventContext(m_event.get(), m_node.get(), topNodeEventContext());
-    TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "EventDispatch", "type", m_event->type().ascii());
+    TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "EventDispatch", "data", InspectorEventDispatchEvent::data(*m_event));
     // FIXME(361045): remove InspectorInstrumentation calls once DevTools Timeline migrates to tracing.
     InspectorInstrumentationCookie cookie = InspectorInstrumentation::willDispatchEvent(&m_node->document(), *m_event, windowEventContext.window(), m_node.get(), m_event->eventPath());
 
     void* preDispatchEventHandlerResult;
     if (dispatchEventPreProcess(preDispatchEventHandlerResult) == ContinueDispatching)
         if (dispatchEventAtCapturing(windowEventContext) == ContinueDispatching)
             if (dispatchEventAtTarget() == ContinueDispatching)
                 dispatchEventAtBubbling(windowEventContext);
     dispatchEventPostProcess(preDispatchEventHandlerResult);
 
@@ skipping 96 matching lines @@
         }
     }
 }
 
 const NodeEventContext* EventDispatcher::topNodeEventContext()
 {
     return m_event->eventPath().isEmpty() ? 0 : &m_event->eventPath().last();
 }
 
 }