cc: Parameterize the main thread task runner

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 50 matching lines @@
       allow_partial_texture_updates(false),
       max_texture_size(0),
       using_shared_memory_resources(false) {}
 
 RendererCapabilities::~RendererCapabilities() {}
 
 scoped_ptr<LayerTreeHost> LayerTreeHost::CreateThreaded(
     LayerTreeHostClient* client,
     SharedBitmapManager* manager,
     const LayerTreeSettings& settings,
+    scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
+  DCHECK(main_task_runner);
   DCHECK(impl_task_runner);
   scoped_ptr<LayerTreeHost> layer_tree_host(
       new LayerTreeHost(client, manager, settings));
-  layer_tree_host->InitializeThreaded(impl_task_runner);
+  layer_tree_host->InitializeThreaded(main_task_runner, impl_task_runner);
   return layer_tree_host.Pass();
 }
 
 scoped_ptr<LayerTreeHost> LayerTreeHost::CreateSingleThreaded(
     LayerTreeHostClient* client,
     LayerTreeHostSingleThreadClient* single_thread_client,
     SharedBitmapManager* manager,
-    const LayerTreeSettings& settings) {
+    const LayerTreeSettings& settings,
+    scoped_refptr<base::SingleThreadTaskRunner> main_task_runner) {
   scoped_ptr<LayerTreeHost> layer_tree_host(
       new LayerTreeHost(client, manager, settings));
-  layer_tree_host->InitializeSingleThreaded(single_thread_client);
+  layer_tree_host->InitializeSingleThreaded(single_thread_client,
+                                            main_task_runner);
   return layer_tree_host.Pass();
 }
 
 LayerTreeHost::LayerTreeHost(LayerTreeHostClient* client,
                              SharedBitmapManager* manager,
                              const LayerTreeSettings& settings)
     : micro_benchmark_controller_(this),
       next_ui_resource_id_(1),
       animating_(false),
       needs_full_tree_sync_(true),
@@ skipping 21 matching lines @@
       id_(s_layer_tree_host_sequence_number.GetNext() + 1),
       next_commit_forces_redraw_(false),
       shared_bitmap_manager_(manager) {
   if (settings_.accelerated_animation_enabled)
     animation_registrar_ = AnimationRegistrar::Create();
   rendering_stats_instrumentation_->set_record_rendering_stats(
       debug_state_.RecordRenderingStats());
 }
 
 void LayerTreeHost::InitializeThreaded(
+    scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner) {
-  InitializeProxy(ThreadProxy::Create(this, impl_task_runner));
+  InitializeProxy(
+      ThreadProxy::Create(this, main_task_runner, impl_task_runner));
 }
 
 void LayerTreeHost::InitializeSingleThreaded(
-    LayerTreeHostSingleThreadClient* single_thread_client) {
-  InitializeProxy(SingleThreadProxy::Create(this, single_thread_client));
+    LayerTreeHostSingleThreadClient* single_thread_client,
+    scoped_refptr<base::SingleThreadTaskRunner> main_task_runner) {
+  InitializeProxy(
+      SingleThreadProxy::Create(this, single_thread_client, main_task_runner));
 }
 
 void LayerTreeHost::InitializeForTesting(scoped_ptr<Proxy> proxy_for_testing) {
   InitializeProxy(proxy_for_testing.Pass());
 }
 
 void LayerTreeHost::InitializeProxy(scoped_ptr<Proxy> proxy) {
   TRACE_EVENT0("cc", "LayerTreeHost::InitializeForReal");
 
   proxy_ = proxy.Pass();
@@ skipping 1129 matching lines @@
   swap_promise_list_.push_back(swap_promise.Pass());
 }
 
 void LayerTreeHost::BreakSwapPromises(SwapPromise::DidNotSwapReason reason) {
   for (size_t i = 0; i < swap_promise_list_.size(); i++)
     swap_promise_list_[i]->DidNotSwap(reason);
   swap_promise_list_.clear();
 }
 
 }  // namespace cc