Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/graphics/DrawLooperBuilder.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DrawLooperBuilder_h
 #define DrawLooperBuilder_h
 
 #include "platform/PlatformExport.h"
 #include "third_party/skia/include/effects/SkLayerDrawLooper.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
-#include <memory>
 
 class SkDrawLooper;
 
 namespace blink {
 
 class Color;
 class FloatSize;
 
 class PLATFORM_EXPORT DrawLooperBuilder final {
     // Implementing the copy constructor properly would require writing code to
     // copy the underlying SkLayerDrawLooper::Builder.
     WTF_MAKE_NONCOPYABLE(DrawLooperBuilder);
     USING_FAST_MALLOC(DrawLooperBuilder);
 
 public:
     enum ShadowTransformMode {
         ShadowRespectsTransforms,
         ShadowIgnoresTransforms
     };
     enum ShadowAlphaMode {
         ShadowRespectsAlpha,
         ShadowIgnoresAlpha
     };
 
     DrawLooperBuilder();
     ~DrawLooperBuilder();
 
-    static std::unique_ptr<DrawLooperBuilder> create();
+    static PassOwnPtr<DrawLooperBuilder> create();
 
     // Creates the SkDrawLooper and passes ownership to the caller. The builder
     // should not be used any more after calling this method.
     PassRefPtr<SkDrawLooper> detachDrawLooper();
 
     void addUnmodifiedContent();
     void addShadow(const FloatSize& offset, float blur, const Color&,
         ShadowTransformMode = ShadowRespectsTransforms,
         ShadowAlphaMode = ShadowRespectsAlpha);
 
 private:
     SkLayerDrawLooper::Builder m_skDrawLooperBuilder;
 };
 
 } // namespace blink
 
 #endif // DrawLooperBuilder_h