Remove duplication of encoded image data

third_party/WebKit/Source/platform/SharedBufferChunkReader.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 27 matching lines @@
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class SharedBuffer;
 
 class PLATFORM_EXPORT SharedBufferChunkReader final {
     DISALLOW_NEW();
     WTF_MAKE_NONCOPYABLE(SharedBufferChunkReader);
 public:
-    SharedBufferChunkReader(SharedBuffer*, const Vector<char>& separator);
-    SharedBufferChunkReader(SharedBuffer*, const char* separator);
+    SharedBufferChunkReader(PassRefPtr<SharedBuffer>, const Vector<char>& separator);
+    SharedBufferChunkReader(PassRefPtr<SharedBuffer>, const char* separator);
 
     void setSeparator(const Vector<char>&);
     void setSeparator(const char*);
 
     // Returns false when the end of the buffer was reached.
     bool nextChunk(Vector<char>& data, bool includeSeparator = false);
 
     // Returns a null string when the end of the buffer has been reached.
     String nextChunkAsUTF8StringWithLatin1Fallback(bool includeSeparator = false);
 
     // Reads size bytes at the current location in the buffer, without changing the buffer position.
     // Returns the number of bytes read. That number might be less than the specified size if the end of the buffer was reached.
     size_t peek(Vector<char>&, size_t);
 
 private:
-    SharedBuffer* m_buffer;
+    RefPtr<SharedBuffer> m_buffer;
     size_t m_bufferPosition;
     const char* m_segment;
     size_t m_segmentLength;
     size_t m_segmentIndex;
     bool m_reachedEndOfFile;
     Vector<char> m_separator;
     size_t m_separatorIndex;
 };
 
 } // namespace blink
 
 #endif