Revert "cc: Added tile bundles"

cc/resources/picture_layer_tiling.h

Index: cc/resources/picture_layer_tiling.h
diff --git a/cc/resources/picture_layer_tiling.h b/cc/resources/picture_layer_tiling.h
index 8a539a8c10548da9bb9058c93f9c38915471b58e..dae62723711ee741adfe368e43ecc700afe137d3 100644
--- a/cc/resources/picture_layer_tiling.h
+++ b/cc/resources/picture_layer_tiling.h
@@ -15,7 +15,6 @@
 #include "cc/base/region.h"
 #include "cc/base/tiling_data.h"
 #include "cc/resources/tile.h"
-#include "cc/resources/tile_bundle.h"
 #include "cc/resources/tile_priority.h"
 #include "ui/gfx/rect.h"
 
@@ -30,10 +29,6 @@ class CC_EXPORT PictureLayerTilingClient {
   virtual scoped_refptr<Tile> CreateTile(
     PictureLayerTiling* tiling,
     gfx::Rect content_rect) = 0;
-  virtual scoped_refptr<TileBundle> CreateTileBundle(int offset_x,
-                                                     int offset_y,
-                                                     int width,
-                                                     int height) = 0;
   virtual void UpdatePile(Tile* tile) = 0;
   virtual gfx::Size CalculateTileSize(
     gfx::Size content_bounds) const = 0;
@@ -71,49 +66,15 @@ class CC_EXPORT PictureLayerTiling {
   gfx::Size tile_size() const { return tiling_data_.max_texture_size(); }
   float contents_scale() const { return contents_scale_; }
 
-  Tile* TileAt(WhichTree tree, int, int) const;
-
-  void SetTreeForTesting(WhichTree tree) {
-    current_tree_ = tree;
-  }
   void CreateAllTilesForTesting() {
-    current_tree_ = ACTIVE_TREE;
-    SetLiveTilesRect(gfx::Rect(tiling_data_.total_size()));
-    live_tiles_rect_ = gfx::Rect();
-    current_tree_ = PENDING_TREE;
-    SetLiveTilesRect(gfx::Rect(tiling_data_.total_size()));
-  }
-  void CreateTilesForTesting(WhichTree tree) {
-    current_tree_ = tree;
     SetLiveTilesRect(gfx::Rect(tiling_data_.total_size()));
   }
+
   std::vector<Tile*> AllTilesForTesting() const {
     std::vector<Tile*> all_tiles;
-    for (TileBundleMap::const_iterator it = tile_bundles_.begin();
-         it != tile_bundles_.end(); ++it) {
-      for (TileBundle::Iterator tile_it(it->second.get()); tile_it; ++tile_it)
-        all_tiles.push_back(*tile_it);
-    }
-    return all_tiles;
-  }
-  std::vector<TileBundle*> AllTileBundlesForTesting() const {
-    std::vector<TileBundle*> all_bundles;
-    for (TileBundleMap::const_iterator it = tile_bundles_.begin();
-         it != tile_bundles_.end(); ++it) {
-      all_bundles.push_back(it->second.get());
-    }
-    return all_bundles;
-  }
-  std::vector<Tile*> TilesForTesting(WhichTree tree) const {
-    std::vector<Tile*> all_tiles;
-    for (TileBundleMap::const_iterator it = tile_bundles_.begin();
-         it != tile_bundles_.end(); ++it) {
-      for (TileBundle::Iterator tile_it(it->second.get(), tree);
-           tile_it;
-           ++tile_it) {
-        all_tiles.push_back(*tile_it);
-      }
-    }
+    for (TileMap::const_iterator it = tiles_.begin();
+         it != tiles_.end(); ++it)
+      all_tiles.push_back(it->second.get());
     return all_tiles;
   }
 
@@ -145,9 +106,6 @@ class CC_EXPORT PictureLayerTiling {
     Tile* operator->() const { return current_tile_; }
     Tile* operator*() const { return current_tile_; }
 
-    TilePriority priority();
-    void SetPriorityForTesting(const TilePriority& priority);
-
     CoverageIterator& operator++();
     operator bool() const { return tile_j_ <= bottom_; }
 
@@ -167,7 +125,6 @@ class CC_EXPORT PictureLayerTiling {
     int top_;
     int right_;
     int bottom_;
-    WhichTree tree_;
 
     friend class PictureLayerTiling;
   };
@@ -232,28 +189,14 @@ class CC_EXPORT PictureLayerTiling {
   }
 
  protected:
-  friend class CoverageIterator;
-  friend class TileBundle;
-
-  typedef std::pair<int, int> TileBundleMapKey;
-  typedef base::hash_map<TileBundleMapKey, scoped_refptr<TileBundle> >
-      TileBundleMap;
+  typedef std::pair<int, int> TileMapKey;
+  typedef base::hash_map<TileMapKey, scoped_refptr<Tile> > TileMap;
 
   PictureLayerTiling(float contents_scale,
                      gfx::Size layer_bounds,
                      PictureLayerTilingClient* client);
   void SetLiveTilesRect(gfx::Rect live_tiles_rect);
-  void CreateTile(WhichTree tree,
-                  int i,
-                  int j,
-                  const PictureLayerTiling* twin_tiling);
-  bool RemoveTile(WhichTree tree, int i, int j);
-  void RemoveBundleContainingTileAtIfEmpty(int i, int j);
-  TileBundle* TileBundleContainingTileAt(int, int) const;
-  TileBundle* CreateBundleForTileAt(int,
-                                    int,
-                                    const PictureLayerTiling* twin_tiling);
-  TileBundle* TileBundleAt(int, int) const;
+  void CreateTile(int i, int j, const PictureLayerTiling* twin_tiling);
 
   // Given properties.
   float contents_scale_;
@@ -263,15 +206,14 @@ class CC_EXPORT PictureLayerTiling {
 
   // Internal data.
   TilingData tiling_data_;
-  TilingData bundle_tiling_data_;
-  // It is not legal to have a NULL tile bundle in the tile_bundles_ map.
-  TileBundleMap tile_bundles_;
+  TileMap tiles_;  // It is not legal to have a NULL tile in the tiles_ map.
   gfx::Rect live_tiles_rect_;
-  WhichTree current_tree_;
 
   // State saved for computing velocities based upon finite differences.
   double last_impl_frame_time_in_seconds_;
 
+  friend class CoverageIterator;
+
  private:
   DISALLOW_ASSIGN(PictureLayerTiling);