Track constant InputDeviceCapabilities objects per-window.

third_party/WebKit/Source/core/events/UIEvent.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 11 matching lines @@
  */
 
 #ifndef UIEvent_h
 #define UIEvent_h
 
 #include "core/CoreExport.h"
 #include "core/events/Event.h"
 #include "core/events/EventDispatchMediator.h"
 #include "core/events/UIEventInit.h"
 #include "core/frame/DOMWindow.h"
-#include "core/input/InputDeviceCapabilities.h"
 
 namespace blink {
 
+class InputDeviceCapabilities;
+
 // FIXME: Get rid of this type alias.
 using AbstractView = DOMWindow;
 
 class CORE_EXPORT UIEvent : public Event {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static UIEvent* create() { return new UIEvent; }
   static UIEvent* create(const AtomicString& type,
                          const UIEventInit& initializer) {
@@ skipping 41 matching lines @@
 
  private:
   Member<AbstractView> m_view;
   int m_detail;
   Member<InputDeviceCapabilities> m_sourceCapabilities;
 };
 
 }  // namespace blink
 
 #endif  // UIEvent_h