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

Source/core/platform/ThreadTimers.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2009 Google 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
  * 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 ThreadTimers_h
 #define ThreadTimers_h
 
-#include <wtf/Noncopyable.h>
-#include <wtf/HashSet.h>
-#include <wtf/Vector.h>
+#include "wtf/Noncopyable.h"
+#include "wtf/HashSet.h"
+#include "wtf/Vector.h"
 
 namespace WebCore {
 
     class SharedTimer;
     class TimerBase;
 
     // A collection of timers per thread. Kept in ThreadGlobalData.
     class ThreadTimers {
         WTF_MAKE_NONCOPYABLE(ThreadTimers); WTF_MAKE_FAST_ALLOCATED;
     public:
@@ skipping 15 matching lines @@
 
         Vector<TimerBase*> m_timerHeap;
         SharedTimer* m_sharedTimer; // External object, can be a run loop on a worker thread. Normally set/reset by worker thread.
         bool m_firingTimers; // Reentrancy guard.
         double m_pendingSharedTimerFireTime;
     };
 
 }
 
 #endif