cc: Store tiles, painters, tiling data in scoped_ptr

cc/caching_bitmap_canvas_layer_texture_updater.h

 // Copyright 2012 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 CACHING_BITMAP_CANVAS_LAYER_TEXTURE_UPDATER_H_
 #define CACHING_BITMAP_CANVAS_LAYER_TEXTURE_UPDATER_H_
 
 #include "base/compiler_specific.h"
 #include "BitmapCanvasLayerTextureUpdater.h"
 
 namespace cc {
 
 class CachingBitmapCanvasLayerTextureUpdater
     : public BitmapCanvasLayerTextureUpdater {
  public:
   static PassRefPtr<CachingBitmapCanvasLayerTextureUpdater> Create(
-      PassOwnPtr<LayerPainterChromium>);
+      scoped_ptr<LayerPainterChromium>);
 
   virtual void prepareToUpdate(const IntRect& content_rect,
                                const IntSize& tile_size,
                                float contents_width_scale,
                                float contents_height_scale,
                                IntRect& resulting_opaque_rect,
                                CCRenderingStats&) OVERRIDE;
 
   bool pixelsDidChange() const;
 
  private:
   explicit CachingBitmapCanvasLayerTextureUpdater(
-      PassOwnPtr<LayerPainterChromium> painter);
+      scoped_ptr<LayerPainterChromium> painter);
 
   bool pixels_did_change_;
   SkBitmap cached_bitmap_;
 };
 
 }  // namespace cc
 
 #endif  // CACHING_BITMAP_CANVAS_LAYER_TEXTURE_UPDATER_H_