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

cc/output/filter_operation.h

Index: cc/output/filter_operation.h
diff --git a/cc/output/filter_operation.h b/cc/output/filter_operation.h
index d0d768acb281186da448d4b60e2c2ac92c950df6..d4ae948de1844cb8bbe500f3b0cf952c2d5ee1aa 100644
--- a/cc/output/filter_operation.h
+++ b/cc/output/filter_operation.h
@@ -9,7 +9,6 @@
 
 #include "base/logging.h"
 #include "cc/base/cc_export.h"
-#include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkImageFilter.h"
 #include "third_party/skia/include/core/SkRegion.h"
@@ -77,7 +76,7 @@ class CC_EXPORT FilterOperation {
     return drop_shadow_color_;
   }
 
-  skia::RefPtr<SkImageFilter> image_filter() const {
+  const sk_sp<SkImageFilter>& image_filter() const {
     DCHECK_EQ(type_, REFERENCE);
     return image_filter_;
   }
@@ -148,8 +147,8 @@ class CC_EXPORT FilterOperation {
   }
 
   static FilterOperation CreateReferenceFilter(
-      const skia::RefPtr<SkImageFilter>& image_filter) {
-    return FilterOperation(REFERENCE, image_filter);
+      sk_sp<SkImageFilter> image_filter) {
+    return FilterOperation(REFERENCE, std::move(image_filter));
   }
 
   static FilterOperation CreateSaturatingBrightnessFilter(float amount) {
@@ -197,9 +196,9 @@ class CC_EXPORT FilterOperation {
     drop_shadow_color_ = color;
   }
 
-  void set_image_filter(const skia::RefPtr<SkImageFilter>& image_filter) {
+  void set_image_filter(sk_sp<SkImageFilter> image_filter) {
     DCHECK_EQ(type_, REFERENCE);
-    image_filter_ = image_filter;
+    image_filter_ = std::move(image_filter);
   }
 
   void set_matrix(const SkScalar matrix[20]) {
@@ -246,8 +245,7 @@ class CC_EXPORT FilterOperation {
 
   FilterOperation(FilterType type, float amount, int inset);
 
-  FilterOperation(FilterType type,
-                  const skia::RefPtr<SkImageFilter>& image_filter);
+  FilterOperation(FilterType type, sk_sp<SkImageFilter> image_filter);
 
   FilterOperation(FilterType type,
                   const SkRegion& region,
@@ -259,7 +257,7 @@ class CC_EXPORT FilterOperation {
   float outer_threshold_;
   gfx::Point drop_shadow_offset_;
   SkColor drop_shadow_color_;
-  skia::RefPtr<SkImageFilter> image_filter_;
+  sk_sp<SkImageFilter> image_filter_;
   SkScalar matrix_[20];
   int zoom_inset_;
   SkRegion region_;