Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/image-decoders/gif/GIFImageDecoder.h

 /*
  * Copyright (C) 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 10 matching lines @@
  * 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 GIFImageDecoder_h
 #define GIFImageDecoder_h
 
 #include "platform/image-decoders/ImageDecoder.h"
 #include "wtf/Noncopyable.h"
-#include <memory>
+#include "wtf/OwnPtr.h"
 
 class GIFImageReader;
 
 typedef Vector<unsigned char> GIFRow;
 
 namespace blink {
 
 // This class decodes the GIF image format.
 class PLATFORM_EXPORT GIFImageDecoder final : public ImageDecoder {
     WTF_MAKE_NONCOPYABLE(GIFImageDecoder);
@@ skipping 37 matching lines @@
     // Called to initialize the frame buffer with the given index, based on
     // the previous frame's disposal method. Returns true on success. On
     // failure, this will mark the image as failed.
     bool initFrameBuffer(size_t frameIndex);
 
     // Like clearCacheExceptFrame(), but preserves two frames instead of one.
     size_t clearCacheExceptTwoFrames(size_t, size_t);
 
     bool m_currentBufferSawAlpha;
     mutable int m_repetitionCount;
-    std::unique_ptr<GIFImageReader> m_reader;
+    OwnPtr<GIFImageReader> m_reader;
 };
 
 } // namespace blink
 
 #endif