cc: Store tiles, painters, tiling data in scoped_ptr

cc/caching_bitmap_canvas_layer_texture_updater.cc

 // 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.
 
 #include "config.h"
 
 #include "caching_bitmap_canvas_layer_texture_updater.h"
 
 #include "LayerPainterChromium.h"
 #include "skia/ext/platform_canvas.h"
 
 namespace cc {
 
 PassRefPtr<CachingBitmapCanvasLayerTextureUpdater>
 CachingBitmapCanvasLayerTextureUpdater::Create(
-    PassOwnPtr<LayerPainterChromium> painter) {
-  return adoptRef(new CachingBitmapCanvasLayerTextureUpdater(painter));
+    scoped_ptr<LayerPainterChromium> painter) {
+  return adoptRef(new CachingBitmapCanvasLayerTextureUpdater(painter.Pass()));
 }
 
 CachingBitmapCanvasLayerTextureUpdater::CachingBitmapCanvasLayerTextureUpdater(
-    PassOwnPtr<LayerPainterChromium> painter)
-    : BitmapCanvasLayerTextureUpdater(painter),
+    scoped_ptr<LayerPainterChromium> painter)
+    : BitmapCanvasLayerTextureUpdater(painter.Pass()),
       pixels_did_change_(false) {
 }
 
 void CachingBitmapCanvasLayerTextureUpdater::prepareToUpdate(
     const IntRect& content_rect,
     const IntSize& tile_size,
     float contents_width_scale,
     float contents_height_scale,
     IntRect& resulting_opaque_rect,
     CCRenderingStats& stats) {
@@ skipping 17 matching lines @@
   if (pixels_did_change_)
     new_bitmap.deepCopyTo(&cached_bitmap_, new_bitmap.config());
 }
 
 bool CachingBitmapCanvasLayerTextureUpdater::pixelsDidChange() const
 {
   return pixels_did_change_;
 }
 
 }  // namespace cc