cc: Move SkShader construction to a single spot in PaintShader

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

 // 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.
 
 #ifndef PaintRecordPattern_h
 #define PaintRecordPattern_h
 
 #include "platform/geometry/FloatRect.h"
 #include "platform/graphics/Pattern.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 
 namespace blink {
 
 // TODO(enne): rename this
 class PLATFORM_EXPORT PaintRecordPattern final : public Pattern {
  public:
   static PassRefPtr<PaintRecordPattern> Create(sk_sp<PaintRecord>,
                                                const FloatRect& record_bounds,
                                                RepeatMode);
 
   ~PaintRecordPattern() override;
 
  protected:
-  sk_sp<PaintShader> CreateShader(const SkMatrix&) override;
+  std::unique_ptr<PaintShader> CreateShader(const SkMatrix&) override;
 
  private:
   PaintRecordPattern(sk_sp<PaintRecord>,
                      const FloatRect& record_bounds,
                      RepeatMode);
 
   sk_sp<PaintRecord> tile_record_;
   FloatRect tile_record_bounds_;
 };
 
 }  // namespace blink
 
 #endif