Enumerate the return value of dispatchEvent so it is clear.

third_party/WebKit/Source/core/events/PointerEvent.cpp

 // Copyright 2015 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.
 
 #include "core/events/PointerEvent.h"
 
 #include "core/dom/Element.h"
 #include "core/events/EventDispatcher.h"
 
 namespace blink {
@@ skipping 65 matching lines @@
 PointerEventDispatchMediator::PointerEventDispatchMediator(PassRefPtrWillBeRawPtr<PointerEvent> pointerEvent)
     : EventDispatchMediator(pointerEvent)
 {
 }
 
 PointerEvent& PointerEventDispatchMediator::event() const
 {
     return toPointerEvent(EventDispatchMediator::event());
 }
 
-bool PointerEventDispatchMediator::dispatchEvent(EventDispatcher& dispatcher) const
+DispatchEventResult PointerEventDispatchMediator::dispatchEvent(EventDispatcher& dispatcher) const
 {
     if (isDisabledFormControl(&dispatcher.node()))
-        return false;
+        return DispatchEventResult::CanceledBeforeDispatch;
 
     if (event().type().isEmpty())
-        return true; // Shouldn't happen.
+        return DispatchEventResult::NotCanceled; // Shouldn't happen.
 
     ASSERT(!event().target() || event().target() != event().relatedTarget());
 
     EventTarget* relatedTarget = event().relatedTarget();
     event().eventPath().adjustForRelatedTarget(dispatcher.node(), relatedTarget);
 
-    dispatcher.dispatch();
-    return !event().defaultHandled() && !event().defaultPrevented();
+    return dispatcher.dispatch();
 }
 
 } // namespace blink