Removed local RefPtr objects created from PassRefPtr arguments.

third_party/WebKit/Source/platform/graphics/ImageSource.h

 /*
  * Copyright (C) 2004, 2005, 2006 Apple Computer, 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
@@ skipping 56 matching lines @@
   //
   // Implementations may elect to preserve more frames than the one requested
   // here if doing so is likely to save CPU time in the future, but will pay
   // an increased memory cost to do so.
   //
   // Returns the number of bytes of frame data actually cleared.
   size_t ClearCacheExceptFrame(size_t);
 
   PassRefPtr<SharedBuffer> Data();
   // Returns false when the decoder layer rejects the data.
-  bool SetData(PassRefPtr<SharedBuffer> data, bool all_data_received);
+  bool SetData(RefPtr<SharedBuffer> data, bool all_data_received);
   String FilenameExtension() const;
 
   bool IsSizeAvailable();
   bool HasColorProfile() const;
   IntSize size(
       RespectImageOrientationEnum = kDoNotRespectImageOrientation) const;
   IntSize FrameSizeAtIndex(
       size_t,
       RespectImageOrientationEnum = kDoNotRespectImageOrientation) const;
 
@@ skipping 18 matching lines @@
 
  private:
   std::unique_ptr<DeferredImageDecoder> decoder_;
   ColorBehavior decoder_color_behavior_;
   bool all_data_received_ = false;
 };
 
 }  // namespace blink
 
 #endif