Update from https://crrev.com/307330

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 767 matching lines @@
     FAIL() << "Test timed out";
     return;
   }
   AfterTest();
 }
 
 void LayerTreeTest::RunTestWithImplSidePainting() {
   RunTest(true, false, true);
 }
 
-void LayerTreeTest::RunTestWithMainThreadLowLatency() {
-  settings_.main_thread_should_always_be_low_latency = true;
-  RunTest(false, false, false);
-}
-
 void LayerTreeTest::RequestNewOutputSurface(bool fallback) {
   layer_tree_host_->SetOutputSurface(CreateOutputSurface(fallback));
 }
 
 scoped_ptr<OutputSurface> LayerTreeTest::CreateOutputSurface(bool fallback) {
   scoped_ptr<FakeOutputSurface> output_surface =
       CreateFakeOutputSurface(fallback);
   if (output_surface) {
     DCHECK_EQ(delegating_renderer_,
               output_surface->capabilities().delegated_rendering);
@@ skipping 31 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