Rewrite references to "wtf/" to "platform/wtf/" in core/{dom,html,xml}.

third_party/WebKit/Source/core/dom/ElementFullscreen.h

 // Copyright 2014 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.
 
 #ifndef ElementFullscreen_h
 #define ElementFullscreen_h
 
 #include "core/events/EventTarget.h"
-#include "wtf/Allocator.h"
+#include "platform/wtf/Allocator.h"
 
 namespace blink {
 
 class Element;
 
 class ElementFullscreen {
   STATIC_ONLY(ElementFullscreen);
 
  public:
   static void requestFullscreen(Element&);
 
   static void webkitRequestFullscreen(Element&);
 
   DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitfullscreenchange);
   DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(webkitfullscreenerror);
 };
 
 }  // namespace blink
 
 #endif  // ElementFullscreen_h