Update from https://crrev.com/320931

cc/trees/layer_tree_host.cc

 // 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.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include <algorithm>
 #include <stack>
 #include <string>
 
@@ skipping 33 matching lines @@
 #include "cc/trees/tree_synchronizer.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/geometry/vector2d_conversions.h"
 
 namespace {
 static base::StaticAtomicSequenceNumber s_layer_tree_host_sequence_number;
 }
 
 namespace cc {
 
-RendererCapabilities::RendererCapabilities(ResourceFormat best_texture_format,
-                                           bool allow_partial_texture_updates,
-                                           int max_texture_size,
-                                           bool using_shared_memory_resources)
-    : best_texture_format(best_texture_format),
-      allow_partial_texture_updates(allow_partial_texture_updates),
-      max_texture_size(max_texture_size),
-      using_shared_memory_resources(using_shared_memory_resources) {}
-
-RendererCapabilities::RendererCapabilities()
-    : best_texture_format(RGBA_8888),
-      allow_partial_texture_updates(false),
-      max_texture_size(0),
-      using_shared_memory_resources(false) {}
-
-RendererCapabilities::~RendererCapabilities() {}
-
 scoped_ptr<LayerTreeHost> LayerTreeHost::CreateThreaded(
     LayerTreeHostClient* client,
     SharedBitmapManager* shared_bitmap_manager,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
     const LayerTreeSettings& settings,
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
     scoped_ptr<BeginFrameSource> external_begin_frame_source) {
   DCHECK(main_task_runner.get());
   DCHECK(impl_task_runner.get());
@@ skipping 1190 matching lines @@
     bool children_need_begin_frames) const {
   proxy_->SetChildrenNeedBeginFrames(children_need_begin_frames);
 }
 
 void LayerTreeHost::SendBeginFramesToChildren(
     const BeginFrameArgs& args) const {
   client_->SendBeginFramesToChildren(args);
 }
 
 }  // namespace cc