Revert "cc: Remove Tile refcounting and RefCountedManaged."

cc/resources/tile.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_H_
 #define CC_RESOURCES_TILE_H_
 
 #include "base/memory/ref_counted.h"
+#include "cc/base/ref_counted_managed.h"
 #include "cc/resources/raster_source.h"
 #include "cc/resources/tile_draw_info.h"
 #include "cc/resources/tile_priority.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace cc {
 
 class TileManager;
 
-class CC_EXPORT Tile {
+class CC_EXPORT Tile : public RefCountedManaged<Tile> {
  public:
-  class Deleter {
-   public:
-    void operator()(Tile* tile) const;
-  };
-
   enum TileRasterFlags { USE_PICTURE_ANALYSIS = 1 << 0 };
 
   typedef uint64 Id;
 
   Id id() const {
     return id_;
   }
 
   RasterSource* raster_source() { return raster_source_.get(); }
 
@@ skipping 57 matching lines @@
 
   void set_tiling_index(int i, int j) {
     tiling_i_index_ = i;
     tiling_j_index_ = j;
   }
   int tiling_i_index() const { return tiling_i_index_; }
   int tiling_j_index() const { return tiling_j_index_; }
 
  private:
   friend class TileManager;
+  friend class PrioritizedTileSet;
   friend class FakeTileManager;
+  friend class BinComparator;
   friend class FakePictureLayerImpl;
 
   // Methods called by by tile manager.
   Tile(TileManager* tile_manager,
        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);
   ~Tile();
 
   bool HasRasterTask() const { return !!raster_task_.get(); }
 
-  TileManager* tile_manager_;
   scoped_refptr<RasterSource> raster_source_;
   gfx::Size desired_texture_size_;
   gfx::Rect content_rect_;
   float contents_scale_;
   bool is_occluded_;
 
   TilePriority priority_;
   TileDrawInfo draw_info_;
 
   int layer_id_;
   int source_frame_number_;
   int flags_;
   int tiling_i_index_;
   int tiling_j_index_;
   bool required_for_activation_ : 1;
   bool required_for_draw_ : 1;
 
   Id id_;
   static Id s_next_id_;
 
   unsigned scheduled_priority_;
 
   scoped_refptr<RasterTask> raster_task_;
 
   DISALLOW_COPY_AND_ASSIGN(Tile);
 };
 
-using ScopedTilePtr = scoped_ptr<Tile, Tile::Deleter>;
-
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_H_