Remove all uses of skia::RefPtr and stale includes

cc/playback/image_hijack_canvas.h

 // Copyright 2016 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_PLAYBACK_IMAGE_HIJACK_CANVAS_H_
 #define CC_PLAYBACK_IMAGE_HIJACK_CANVAS_H_
 
 #include "base/macros.h"
-#include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/utils/SkNWayCanvas.h"
 
 namespace cc {
 
 class ImageDecodeController;
 
 class ImageHijackCanvas : public SkNWayCanvas {
  public:
   ImageHijackCanvas(int width,
                     int height,
@@ skipping 21 matching lines @@
                        const SkPaint* paint) override;
 
   ImageDecodeController* image_decode_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageHijackCanvas);
 };
 
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_IMAGE_HIJACK_CANVAS_H_