cc: Refactored Tile::GetResourceId

cc/tile_manager.h

Index: cc/tile_manager.h
diff --git a/cc/tile_manager.h b/cc/tile_manager.h
index 6d2c621bf7e37ad0cc84df5e28fadc7c4740b6c2..9e407363ca25c19fc4a70ace9a366d71c311cea4 100644
--- a/cc/tile_manager.h
+++ b/cc/tile_manager.h
@@ -16,6 +16,7 @@
 #include "cc/memory_history.h"
 #include "cc/rendering_stats.h"
 #include "cc/resource_pool.h"
+#include "cc/tile_drawing_info.h"
 #include "cc/tile_priority.h"
 #include "cc/worker_pool.h"
 
@@ -75,13 +76,10 @@ class CC_EXPORT ManagedTileState {
 
   // Persisted state: valid all the time.
   bool can_use_gpu_memory;
-  bool can_be_freed;
-  scoped_ptr<ResourcePool::Resource> resource;
-  bool resource_is_being_initialized;
-  bool contents_swizzled;
   bool need_to_gather_pixel_refs;
   std::list<skia::LazyPixelRef*> pending_pixel_refs;
   TileRasterState raster_state;
+  TileDrawingInfo drawing_info;
 
   // Ephemeral state, valid only during Manage.
   TileManagerBin bin[NUM_BIN_PRIORITIES];