cc: Correct elastic overscroll synchronization.

cc/trees/layer_tree_host.h

 // Copyright 2011 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_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 404 matching lines @@
 
   const LayerTreeSettings settings_;
   LayerTreeDebugState debug_state_;
 
   bool visible_;
 
   bool has_gpu_rasterization_trigger_;
   bool content_is_suitable_for_gpu_rasterization_;
   bool gpu_rasterization_histogram_recorded_;
 
-  gfx::Vector2dF elastic_overscroll_;
-
   // If set, then page scale animation has completed, but the client hasn't been
   // notified about it yet.
   bool did_complete_scale_animation_;
 
   int id_;
   bool next_commit_forces_redraw_;
 
   SharedBitmapManager* shared_bitmap_manager_;
   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   TaskGraphRunner* task_graph_runner_;
 
   ImageSerializationProcessor* image_serialization_processor_;
   std::unique_ptr<EnginePictureCache> engine_picture_cache_;
   std::unique_ptr<ClientPictureCache> client_picture_cache_;
 
   std::vector<std::unique_ptr<SwapPromise>> swap_promise_list_;
   std::set<SwapPromiseMonitor*> swap_promise_monitor_;
 
   uint32_t surface_client_id_;
   uint32_t next_surface_sequence_;
   uint32_t num_consecutive_frames_suitable_for_gpu_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_