Update from chromium https://crrev.com/301315

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 309 matching lines @@
   void DidCommitAndDrawFrame() override {
     test_hooks_->DidCommitAndDrawFrame();
   }
 
   void DidCompleteSwapBuffers() override {
     test_hooks_->DidCompleteSwapBuffers();
   }
 
   void DidPostSwapBuffers() override {}
   void DidAbortSwapBuffers() override {}
+  void ScheduleComposite() override { test_hooks_->ScheduleComposite(); }
 
  private:
   explicit LayerTreeHostClientForTesting(TestHooks* test_hooks)
       : test_hooks_(test_hooks) {}
 
   TestHooks* test_hooks_;
 };
 
 // Adapts LayerTreeHost for test. Injects LayerTreeHostImplForTesting.
 class LayerTreeHostForTesting : public LayerTreeHost {
@@ skipping 374 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