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

third_party/WebKit/Source/platform/graphics/PicturePattern.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/graphics/PicturePattern.h"
 
 #include "platform/graphics/skia/SkiaUtils.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include "third_party/skia/include/core/SkShader.h"
 
 namespace blink {
 
-PassRefPtr<PicturePattern> PicturePattern::create(PassRefPtr<SkPicture> picture,
+PassRefPtr<PicturePattern> PicturePattern::create(sk_sp<SkPicture> picture,
     RepeatMode repeatMode)
 {
-    return adoptRef(new PicturePattern(picture, repeatMode));
+    return adoptRef(new PicturePattern(std::move(picture), repeatMode));
 }
 
-PicturePattern::PicturePattern(PassRefPtr<SkPicture> picture, RepeatMode mode)
+PicturePattern::PicturePattern(sk_sp<SkPicture> picture, RepeatMode mode)
     : Pattern(mode)
-    , m_tilePicture(toSkSp(picture))
+    , m_tilePicture(std::move(picture))
 {
     // All current clients use RepeatModeXY, so we only support this mode for now.
     ASSERT(isRepeatXY());
 
     // FIXME: we don't have a good way to account for DL memory utilization.
 }
 
 PicturePattern::~PicturePattern()
 {
 }
 
 sk_sp<SkShader> PicturePattern::createShader(const SkMatrix& localMatrix)
 {
     SkRect tileBounds = m_tilePicture->cullRect();
 
     return SkShader::MakePictureShader(m_tilePicture,
         SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, &localMatrix, &tileBounds);
 }
 
 } // namespace blink