Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/image-encoders/JPEGImageEncoder.h

 /*
  * Copyright (c) 2010, 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 15 matching lines @@
  * THEORY 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 JPEGImageEncoder_h
 #define JPEGImageEncoder_h
 
 #include "platform/geometry/IntSize.h"
 #include "wtf/Allocator.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
-#include <memory>
 
 namespace blink {
 
 struct ImageDataBuffer;
 
 class PLATFORM_EXPORT JPEGImageEncoderState {
     USING_FAST_MALLOC(JPEGImageEncoderState);
     WTF_MAKE_NONCOPYABLE(JPEGImageEncoderState);
 public:
-    static std::unique_ptr<JPEGImageEncoderState> create(const IntSize& imageSize, const double& quality, Vector<unsigned char>* output);
+    static PassOwnPtr<JPEGImageEncoderState> create(const IntSize& imageSize, const double& quality, Vector<unsigned char>* output);
     JPEGImageEncoderState() {}
     virtual ~JPEGImageEncoderState() {}
 };
 
 class PLATFORM_EXPORT JPEGImageEncoder {
     STATIC_ONLY(JPEGImageEncoder);
 public:
     enum {
         ProgressiveEncodeFailed = -1
     };
 
     // Encode the image data with a compression quality in [0-100].
     // Warning: Calling this method off the main thread may result in data race
     // problems; instead, call JPEGImageEncoderState::create on main thread
     // first followed by encodeWithPreInitializedState off the main thread will
     // be safer.
     static bool encode(const ImageDataBuffer&, const double& quality, Vector<unsigned char>*);
 
-    static bool encodeWithPreInitializedState(std::unique_ptr<JPEGImageEncoderState>, const unsigned char*, int numRowsCompleted = 0);
+    static bool encodeWithPreInitializedState(PassOwnPtr<JPEGImageEncoderState>, const unsigned char*, int numRowsCompleted = 0);
     static int progressiveEncodeRowsJpegHelper(JPEGImageEncoderState*, unsigned char*, int, const double, double);
     static int computeCompressionQuality(const double& quality);
 
 private:
     // For callers: provide a reasonable compression quality default.
     enum Quality { DefaultCompressionQuality = 92 };
 };
 
 } // namespace blink
 
 #endif