Update from https://crrev.com/306655

cc/surfaces/surface.cc

 // Copyright 2014 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.
 
 #include "cc/surfaces/surface.h"
 
 #include <algorithm>
 
 #include "cc/output/compositor_frame.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_id_allocator.h"
 #include "cc/surfaces/surface_manager.h"
 
 namespace cc {
 
 // The frame index starts at 2 so that empty frames will be treated as
 // completely damaged the first time they're drawn from.
 static const int kFrameIndexStart = 2;
 
-Surface::Surface(SurfaceId id, const gfx::Size& size, SurfaceFactory* factory)
+Surface::Surface(SurfaceId id, SurfaceFactory* factory)
     : surface_id_(id),
-      size_(size),
       factory_(factory->AsWeakPtr()),
       frame_index_(kFrameIndexStart) {
 }
 
 Surface::~Surface() {
   ClearCopyRequests();
   if (current_frame_ && factory_) {
     ReturnedResourceArray current_resources;
     TransferableResource::ReturnResources(
         current_frame_->delegated_frame_data->resource_list,
@@ skipping 96 matching lines @@
   if (current_frame_) {
     for (const auto& render_pass :
          current_frame_->delegated_frame_data->render_pass_list) {
       for (const auto& copy_request : render_pass->copy_requests)
         copy_request->SendEmptyResult();
     }
   }
 }
 
 }  // namespace cc