cc: Fix flakiness in LayerTreeHostCopyRequestTestMultipleDrawsHiddenCopyRequest

cc/test/layer_tree_test.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/test/layer_tree_test.h"
 
 #include "base/command_line.h"
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/layer_animation_controller.h"
@@ skipping 555 matching lines @@
                  main_thread_weak_ptr_));
 }
 
 void LayerTreeTest::PostCompositeImmediatelyToMainThread() {
   main_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&LayerTreeTest::DispatchCompositeImmediately,
                  main_thread_weak_ptr_));
 }
 
-void LayerTreeTest::PostEndTestToMainThread() {
-  main_task_runner_->PostTask(
-      FROM_HERE, base::Bind(&LayerTreeTest::EndTest, main_thread_weak_ptr_));
-}
-
 void LayerTreeTest::WillBeginTest() {
   layer_tree_host_->SetLayerTreeHostClientReady();
 }
 
 void LayerTreeTest::DoBeginTest() {
   client_ = LayerTreeHostClientForTesting::Create(this);
 
   scoped_ptr<FakeExternalBeginFrameSource> external_begin_frame_source;
   if (settings_.use_external_begin_frame_source) {
     external_begin_frame_source.reset(new FakeExternalBeginFrameSource(
@@ skipping 205 matching lines @@
   return -1;
 }
 
 void LayerTreeTest::DestroyLayerTreeHost() {
   if (layer_tree_host_ && layer_tree_host_->root_layer())
     layer_tree_host_->root_layer()->SetLayerTreeHost(NULL);
   layer_tree_host_ = nullptr;
 }
 
 }  // namespace cc