include RefCounted.h where needed, only.

third_party/WebKit/Source/platform/EventTracer.h

 /*
  * Copyright (C) 2011 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 16 matching lines @@
  * (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 EventTracer_h
 #define EventTracer_h
 
 #include "platform/PlatformExport.h"
 #include "wtf/Allocator.h"
 #include "wtf/PassOwnPtr.h"
-#include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 #include <memory>
 #include <stdint.h>
 
 namespace base {
 namespace trace_event {
 class ConvertableToTraceFormat;
 class TraceEventMemoryOverhead;
 }
@@ skipping 61 matching lines @@
         const char* argNames[],
         const unsigned char argTypes[],
         const unsigned long long argValues[],
         std::unique_ptr<base::trace_event::ConvertableToTraceFormat>* convertables,
         unsigned flags);
 };
 
 } // namespace blink
 
 #endif // EventTracer_h