cc: Remove tile sharing from tilings.

cc/resources/tile_manager.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 CC_RESOURCES_TILE_MANAGER_H_
 #define CC_RESOURCES_TILE_MANAGER_H_
 
 #include <deque>
 #include <queue>
 #include <set>
@@ skipping 100 matching lines @@
 
   // Assigns tile memory and schedules work to prepare tiles for drawing.
   // - Runs client_->NotifyReadyToActivate() when all tiles required for
   // activation are prepared, or failed to prepare due to OOM.
   // - Runs client_->NotifyReadyToDraw() when all tiles required draw are
   // prepared, or failed to prepare due to OOM.
   void PrepareTiles(const GlobalStateThatImpactsTilePriority& state);
 
   void UpdateVisibleTiles(const GlobalStateThatImpactsTilePriority& state);
 
-  scoped_refptr<Tile> CreateTile(RasterSource* raster_source,
+  scoped_refptr<Tile> CreateTile(scoped_refptr<RasterSource>* raster_source,
                                  const gfx::Size& desired_texture_size,
                                  const gfx::Rect& content_rect,
                                  float contents_scale,
                                  int layer_id,
                                  int source_frame_number,
                                  int flags);
 
   bool IsReadyToActivate() const;
   bool IsReadyToDraw() const;
 
@@ skipping 175 matching lines @@
 
   bool did_notify_ready_to_activate_;
   bool did_notify_ready_to_draw_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_