cc: Remove memory state from tile management

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 "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 64 matching lines @@
 
   int layer_id() const { return layer_id_; }
 
   int source_frame_number() const { return source_frame_number_; }
 
   void set_picture_pile(scoped_refptr<PicturePileImpl> pile) {
     DCHECK(pile->CanRaster(contents_scale_, content_rect_));
     picture_pile_ = pile;
   }
 
-  bool IsAssignedGpuMemory() const {
-    return tile_version().memory_state_ != NOT_ALLOWED_TO_USE_MEMORY;
+  // For test only methods.
+  bool HasRasterTaskForTesting() const {
+    return !managed_state().raster_task.is_null();
+  }
+  void ResetRasterTaskForTesting() {
+    managed_state().raster_task.Reset();
   }
 
  private:
   // Methods called by by tile manager.
   friend class TileManager;
   friend class BinComparator;
   ManagedTileState& managed_state() { return managed_state_; }
   const ManagedTileState& managed_state() const { return managed_state_; }
 
   inline size_t bytes_consumed_if_allocated() const {
@@ skipping 16 matching lines @@
   ManagedTileState managed_state_;
   int layer_id_;
   int source_frame_number_;
 
   DISALLOW_COPY_AND_ASSIGN(Tile);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_H_