gpu: Refactor GpuMemoryBuffer framework for multi-process support.

cc/resources/tile_manager.h

Index: cc/resources/tile_manager.h
diff --git a/cc/resources/tile_manager.h b/cc/resources/tile_manager.h
index 7957fc823f21e67657380a13f35e8589d1073654..e2513ccb5bd54ed8e9d46e7fa511b8aca0ac80eb 100644
--- a/cc/resources/tile_manager.h
+++ b/cc/resources/tile_manager.h
@@ -85,8 +85,7 @@ class CC_EXPORT TileManager : public RasterWorkerPoolClient {
               ResourceProvider* resource_provider,
               scoped_ptr<RasterWorkerPool> raster_worker_pool,
               size_t num_raster_threads,
-              RenderingStatsInstrumentation* rendering_stats_instrumentation,
-              GLenum texture_format);
+              RenderingStatsInstrumentation* rendering_stats_instrumentation);
 
   // Methods called by Tile
   friend class Tile;
@@ -155,8 +154,6 @@ class CC_EXPORT TileManager : public RasterWorkerPoolClient {
 
   bool did_initialize_visible_tile_;
 
-  GLenum texture_format_;
-
   typedef base::hash_map<uint32_t, RasterWorkerPool::Task> PixelRefTaskMap;
   typedef base::hash_map<int, PixelRefTaskMap> LayerPixelRefTaskMap;
   LayerPixelRefTaskMap image_decode_tasks_;