Use sk_sp-based shader creation APIs

cc/output/software_renderer.h

 // Copyright 2012 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 CC_OUTPUT_SOFTWARE_RENDERER_H_
 #define CC_OUTPUT_SOFTWARE_RENDERER_H_
 
 #include "base/macros.h"
 #include "cc/base/cc_export.h"
 #include "cc/output/compositor_frame.h"
@@ skipping 81 matching lines @@
                            const DrawQuad* quad);
   bool ShouldApplyBackgroundFilters(const RenderPassDrawQuad* quad) const;
   skia::RefPtr<SkImage> ApplyImageFilter(SkImageFilter* filter,
                                          const RenderPassDrawQuad* quad,
                                          const SkBitmap* to_filter) const;
   gfx::Rect GetBackdropBoundingBoxForRenderPassQuad(
       const DrawingFrame* frame,
       const RenderPassDrawQuad* quad,
       const gfx::Transform& contents_device_transform) const;
   SkBitmap GetBackdropBitmap(const gfx::Rect& bounding_rect) const;
-  skia::RefPtr<SkShader> GetBackgroundFilterShader(
+  sk_sp<SkShader> GetBackgroundFilterShader(
       const DrawingFrame* frame,
       const RenderPassDrawQuad* quad,
       SkShader::TileMode content_tile_mode) const;
 
   RendererCapabilitiesImpl capabilities_;
   bool is_scissor_enabled_;
   bool is_backbuffer_discarded_;
   gfx::Rect scissor_rect_;
 
   SoftwareOutputDevice* output_device_;
   SkCanvas* root_canvas_;
   SkCanvas* current_canvas_;
   SkPaint current_paint_;
   scoped_ptr<ResourceProvider::ScopedWriteLockSoftware>
       current_framebuffer_lock_;
   skia::RefPtr<SkCanvas> current_framebuffer_canvas_;
 
   DISALLOW_COPY_AND_ASSIGN(SoftwareRenderer);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_SOFTWARE_RENDERER_H_