Enumerate the return value of dispatchEvent so it is clear.

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

 // Copyright 2016 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/InputEvent.h"
 
 #include "core/events/EventDispatcher.h"
 
 namespace blink {
 
 InputEvent::InputEvent()
 {
 }
 
 InputEvent::InputEvent(const AtomicString& type, const InputEventInit& initializer)
     : UIEvent(type, initializer)
 {
 }
 
-PassRefPtrWillBeRawPtr<EventDispatchMediator> InputEvent::createMediator()
-{
-    return InputEventDispatchMediator::create(this);
-}
-
 bool InputEvent::isInputEvent() const
 {
     return true;
 }
 
 DEFINE_TRACE(InputEvent)
 {
     UIEvent::trace(visitor);
 }
 
-PassRefPtrWillBeRawPtr<InputEventDispatchMediator> InputEventDispatchMediator::create(PassRefPtrWillBeRawPtr<InputEvent> inputEvent)
-{
-    return adoptRefWillBeNoop(new InputEventDispatchMediator(inputEvent));
-}
-
-InputEventDispatchMediator::InputEventDispatchMediator(PassRefPtrWillBeRawPtr<InputEvent> inputEvent)
-    : EventDispatchMediator(inputEvent)
-{
-}
-
-InputEvent& InputEventDispatchMediator::event() const
-{
-    return toInputEvent(EventDispatchMediator::event());
-}
-
-bool InputEventDispatchMediator::dispatchEvent(EventDispatcher& dispatcher) const
-{
-    return EventDispatchMediator::dispatchEvent(dispatcher) && !event().defaultHandled();
-}
-
 } // namespace blink