Rework dispatchEvent so it is consistent for isTrusted support.

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index 6a4e935f260e592e861b42e56cc71a7b44ef50be..f62bb14ba1d76d47085057e4c4ad6874db3a2fe3 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -2007,7 +2007,7 @@ void Node::dispatchScopedEventDispatchMediator(PassRefPtrWillBeRawPtr<EventDispa
     EventDispatcher::dispatchScopedEvent(*this, eventDispatchMediator);
 }
 
-bool Node::dispatchEvent(PassRefPtrWillBeRawPtr<Event> event)
+bool Node::dispatchEventInternal(PassRefPtrWillBeRawPtr<Event> event)
 {
     if (event->isMouseEvent())
         return EventDispatcher::dispatchEvent(*this, MouseEventDispatchMediator::create(static_pointer_cast<MouseEvent>(event), MouseEventDispatchMediator::SyntheticMouseEvent));