Replace many skia::RefPtr with sk_sp<> in cc/

cc/output/gl_renderer.h

Index: cc/output/gl_renderer.h
diff --git a/cc/output/gl_renderer.h b/cc/output/gl_renderer.h
index f9ebba367ee3768d95a7d1bd63ee77fc7c7c4adc..d1de2c24595fcd0835db3f00cf27aa592c08d331 100644
--- a/cc/output/gl_renderer.h
+++ b/cc/output/gl_renderer.h
@@ -173,11 +173,10 @@ class CC_EXPORT GLRenderer : public DirectRenderer {
       const gfx::Rect& bounding_rect);
 
   static bool ShouldApplyBackgroundFilters(const RenderPassDrawQuad* quad);
-  skia::RefPtr<SkImage> ApplyBackgroundFilters(
-      DrawingFrame* frame,
-      const RenderPassDrawQuad* quad,
-      ScopedResource* background_texture,
-      const gfx::RectF& rect);
+  sk_sp<SkImage> ApplyBackgroundFilters(DrawingFrame* frame,
+                                        const RenderPassDrawQuad* quad,
+                                        ScopedResource* background_texture,
+                                        const gfx::RectF& rect);
 
   void DrawRenderPassQuad(DrawingFrame* frame,
                           const RenderPassDrawQuad* quadi,