Change (Pass)RefPtr<SkXxx> into sk_sp<SkXxx>.

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

 /*
  * Copyright (c) 2013, 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * 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 UnacceleratedImageBufferSurface_h
 #define UnacceleratedImageBufferSurface_h
 
 #include "platform/graphics/ImageBufferSurface.h"
-#include "wtf/RefPtr.h"
+#include "third_party/skia/include/core/SkRefCnt.h"
 
 class SkSurface;
 
 namespace blink {
 
 class PLATFORM_EXPORT UnacceleratedImageBufferSurface : public ImageBufferSurface {
     WTF_MAKE_NONCOPYABLE(UnacceleratedImageBufferSurface); USING_FAST_MALLOC(UnacceleratedImageBufferSurface);
 public:
     UnacceleratedImageBufferSurface(const IntSize&, OpacityMode = NonOpaque, ImageInitializationMode = InitializeImagePixels, sk_sp<SkColorSpace> = nullptr);
     ~UnacceleratedImageBufferSurface() override;
 
     SkCanvas* canvas() override;
     bool isValid() const override;
 
-    PassRefPtr<SkImage> newImageSnapshot(AccelerationHint, SnapshotReason) override;
+    sk_sp<SkImage> newImageSnapshot(AccelerationHint, SnapshotReason) override;
 private:
     sk_sp<SkSurface> m_surface;
 };
 
 } // namespace blink
 
 #endif