Update from https://crrev.com/312398

cc/resources/resource_update_controller.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_RESOURCE_UPDATE_CONTROLLER_H_
 #define CC_RESOURCES_RESOURCE_UPDATE_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 53 matching lines @@
 
   void UpdateTexture(ResourceUpdate update);
 
   // This returns true when there were textures left to update.
   bool UpdateMoreTexturesIfEnoughTimeRemaining();
   void UpdateMoreTexturesNow();
   void OnTimerFired();
 
   ResourceUpdateControllerClient* client_;
   scoped_ptr<ResourceUpdateQueue> queue_;
-  bool contents_textures_purged_;
   ResourceProvider* resource_provider_;
   base::TimeTicks time_limit_;
   size_t texture_updates_per_tick_;
   bool first_update_attempt_;
   base::SingleThreadTaskRunner* task_runner_;
   bool task_posted_;
   bool ready_to_finalize_;
   base::WeakPtrFactory<ResourceUpdateController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceUpdateController);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_UPDATE_CONTROLLER_H_