Move TraceEvent.h from platform/ to wtf/

Source/modules/mediasource/WebKitSourceBuffer.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/mediasource/WebKitSourceBuffer.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/html/TimeRanges.h"
 #include "modules/mediasource/WebKitMediaSource.h"
-#include "platform/TraceEvent.h"
 #include "public/platform/WebSourceBuffer.h"
+#include "wtf/TraceEvent.h"
 #include "wtf/Uint8Array.h"
 
 using blink::WebSourceBuffer;
 
 namespace WebCore {
 
 static bool throwExceptionIfRemoved(bool isRemoved, ExceptionState& exceptionState)
 {
     if (isRemoved) {
         exceptionState.throwDOMException(InvalidStateError, "This SourceBuffer has been removed from its parent MediaSource.");
@@ skipping 123 matching lines @@
 {
     return !m_source;
 }
 
 void WebKitSourceBuffer::trace(Visitor* visitor)
 {
     visitor->trace(m_source);
 }
 
 } // namespace WebCore