cc: Make BackToBackBeginFrameSource a SyntheticBeginFrameSource.

content/test/fake_compositor_dependencies.cc

 // Copyright 2014 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 "content/test/fake_compositor_dependencies.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 74 matching lines @@
 }
 
 scheduler::RendererScheduler*
 FakeCompositorDependencies::GetRendererScheduler() {
   return &renderer_scheduler_;
 }
 
 std::unique_ptr<cc::BeginFrameSource>
 FakeCompositorDependencies::CreateExternalBeginFrameSource(int routing_id) {
   double refresh_rate = 200.0;
-  return base::WrapUnique(new cc::FakeExternalBeginFrameSource(refresh_rate));
+  bool tick_automatically = true;
+  return base::MakeUnique<cc::FakeExternalBeginFrameSource>(refresh_rate,
+                                                            tick_automatically);
 }
 
 cc::ImageSerializationProcessor*
 FakeCompositorDependencies::GetImageSerializationProcessor() {
   return nullptr;
 }
 
 cc::TaskGraphRunner* FakeCompositorDependencies::GetTaskGraphRunner() {
   return &task_graph_runner_;
 }
 
 bool FakeCompositorDependencies::AreImageDecodeTasksEnabled() {
   return false;
 }
 
 bool FakeCompositorDependencies::IsThreadedAnimationEnabled() {
   return true;
 }
 
 }  // namespace content