Remove all uses of skia::RefPtr and stale includes

cc/layers/picture_image_layer.h

 // Copyright 2010 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_LAYERS_PICTURE_IMAGE_LAYER_H_
 #define CC_LAYERS_PICTURE_IMAGE_LAYER_H_
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/content_layer_client.h"
 #include "cc/layers/picture_layer.h"
-#include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "ui/gfx/geometry/size.h"
 
 class SkImage;
 
 namespace cc {
 
 class CC_EXPORT PictureImageLayer : public PictureLayer, ContentLayerClient {
  public:
   static scoped_refptr<PictureImageLayer> Create();
@@ skipping 19 matching lines @@
   ~PictureImageLayer() override;
 
   sk_sp<const SkImage> image_;
 
   DISALLOW_COPY_AND_ASSIGN(PictureImageLayer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_PICTURE_IMAGE_LAYER_H_