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

Source/core/platform/mediastream/RTCVoidRequest.h

 /*
  * Copyright (C) 2012 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
@@ skipping 13 matching lines @@
  * 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 RTCVoidRequest_h
 #define RTCVoidRequest_h
 
-#include <wtf/PassRefPtr.h>
-#include <wtf/RefCounted.h>
-#include <wtf/RefPtr.h>
-#include <wtf/text/WTFString.h>
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefCounted.h"
+#include "wtf/RefPtr.h"
+#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class RTCVoidRequest : public RefCounted<RTCVoidRequest> {
 public:
     class ExtraData : public RefCounted<ExtraData> {
     public:
         virtual ~ExtraData() { }
     };
 
     virtual ~RTCVoidRequest() { }
 
     virtual void requestSucceeded() = 0;
     virtual void requestFailed(const String& error) = 0;
 
     PassRefPtr<ExtraData> extraData() const { return m_extraData; }
     void setExtraData(PassRefPtr<ExtraData> extraData) { m_extraData = extraData; }
 
 protected:
     RTCVoidRequest() { }
 
 private:
     RefPtr<ExtraData> m_extraData;
 };
 
 } // namespace WebCore
 
 #endif // RTCVoidRequest_h