Move PlatformEvent.cpp/.h to Source/platform/

Source/core/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 54 matching lines @@
 #include "core/page/FocusController.h"
 #include "core/page/Frame.h"
 #include "core/page/FrameTree.h"
 #include "core/page/FrameView.h"
 #include "core/page/MouseEventWithHitTestResults.h"
 #include "core/page/Page.h"
 #include "core/page/Settings.h"
 #include "core/page/SpatialNavigation.h"
 #include "core/page/TouchAdjustment.h"
 #include "core/platform/Cursor.h"
-#include "core/platform/PlatformEvent.h"
 #include "core/platform/PlatformGestureEvent.h"
 #include "core/platform/PlatformKeyboardEvent.h"
 #include "core/platform/PlatformTouchEvent.h"
 #include "core/platform/PlatformWheelEvent.h"
 #include "core/platform/ScrollAnimator.h"
 #include "core/platform/Scrollbar.h"
 #include "core/platform/WindowsKeyboardCodes.h"
 #include "core/platform/chromium/ChromiumDataObject.h"
 #include "core/platform/graphics/Image.h"
 #include "core/rendering/HitTestRequest.h"
@@ skipping 3751 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace WebCore