cc: Eliminate tile.h's dependency on tile_manager.h

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 <queue>
 #include <set>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/picture_pile_impl.h"
 #include "cc/resources/raster_worker_pool.h"
 #include "cc/resources/resource_pool.h"
-#include "cc/resources/tile_priority.h"
 
 namespace cc {
 class ResourceProvider;
 class Tile;
 class TileVersion;
 
 class CC_EXPORT TileManagerClient {
  public:
   virtual void DidInitializeVisibleTile() = 0;
   virtual void NotifyReadyToActivate() = 0;
@@ skipping 94 matching lines @@
   void AssignBinsToTiles();
   void SortTiles();
   RasterMode DetermineRasterMode(const Tile* tile) const;
   void CleanUpUnusedImageDecodeTasks();
   void AssignGpuMemoryToTiles();
   void FreeResourceForTile(Tile* tile, RasterMode mode);
   void FreeResourcesForTile(Tile* tile);
   void FreeUnusedResourcesForTile(Tile* tile);
   RasterWorkerPool::Task CreateImageDecodeTask(
       Tile* tile, skia::LazyPixelRef* pixel_ref);
-  RasterTaskMetadata GetRasterTaskMetadata(const Tile& tile) const;
   RasterWorkerPool::RasterTask CreateRasterTask(Tile* tile);
   void DidFinishTileInitialization(Tile* tile);
   void DidTileTreeBinChange(Tile* tile,
                             TileManagerBin new_tree_bin,
                             WhichTree tree);
   scoped_ptr<base::Value> GetMemoryRequirementsAsValue() const;
   void AddRequiredTileForActivation(Tile* tile);
 
   TileManagerClient* client_;
   scoped_ptr<ResourcePool> resource_pool_;
@@ skipping 18 matching lines @@
   typedef base::hash_map<uint32_t, RasterWorkerPool::Task> PixelRefTaskMap;
   typedef base::hash_map<int, PixelRefTaskMap> LayerPixelRefTaskMap;
   LayerPixelRefTaskMap image_decode_tasks_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_