core/dom: Include wtf files using "wtf/foo.h" form.

Source/core/dom/UserTypingGestureIndicator.h

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef UserTypingGestureIndicator_h
 #define UserTypingGestureIndicator_h
 
-#include <wtf/Noncopyable.h>
-#include <wtf/RefPtr.h>
+#include "wtf/Noncopyable.h"
+#include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class Frame;
 class Node;
 
 class UserTypingGestureIndicator {
     WTF_MAKE_NONCOPYABLE(UserTypingGestureIndicator);
 public:
     static bool processingUserTypingGesture();
     static Node* focusedElementAtGestureStart();
 
     explicit UserTypingGestureIndicator(Frame*);
     ~UserTypingGestureIndicator();
 
 private:
     bool m_previousProcessingUserTypingGesture;
     RefPtr<Node> m_previousFocusedNode;
 };    
 
 } // namespace WebCore
 
 #endif // UserTypingGestureIndicator_h