Fix JPEGImageEncoder memory leak

third_party/WebKit/Source/platform/image-encoders/skia/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 41 matching lines @@
 class PLATFORM_EXPORT JPEGImageEncoder {
     STATIC_ONLY(JPEGImageEncoder);
 public:
     // 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 void encodeWithPreInitializedState(JPEGImageEncoderState*, const unsigned char*);
+    static bool encodeWithPreInitializedState(PassOwnPtr<JPEGImageEncoderState>, const unsigned char*);
     static int computeCompressionQuality(const double& quality);
 
 private:
     // For callers: provide a reasonable compression quality default.
     enum Quality { DefaultCompressionQuality = 92 };
 };
 
 } // namespace blink
 
 #endif