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

cc/layers/picture_layer_unittest.cc

 // Copyright 2013 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 "cc/layers/picture_layer.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 283 matching lines @@
       host_impl.pending_tree()->root_layer());
   layer->PushPropertiesTo(layer_impl);
 
   EXPECT_EQ(gfx::Rect(), layer_impl->GetPendingInvalidation()->bounds());
 }
 
 TEST(PictureLayerTest, ClearVisibleRectWhenNoTiling) {
   gfx::Size layer_size(50, 50);
   FakeContentLayerClient client;
   client.set_bounds(layer_size);
-  skia::RefPtr<SkImage> image = CreateDiscardableImage(layer_size);
+  sk_sp<SkImage> image(CreateDiscardableImage(layer_size));
   client.add_draw_image(image.get(), gfx::Point(), SkPaint());
   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
   layer->SetBounds(gfx::Size(10, 10));
 
   FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
   TestTaskGraphRunner task_graph_runner;
   std::unique_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
   host->SetRootLayer(layer);
   layer->SetIsDrawable(true);
@@ skipping 149 matching lines @@
   // Do a main frame, record the picture layers. The frame number has changed
   // non-monotonically.
   layer->SetNeedsDisplay();
   host2->Composite(base::TimeTicks::Now());
   EXPECT_EQ(3, layer->update_count());
   EXPECT_EQ(1, host2->source_frame_number());
 }
 
 }  // namespace
 }  // namespace cc