Remove external begin frame source parameter and settings

cc/test/scheduler_test_common.cc

 // Copyright 2012 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/scheduler_test_common.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 129 matching lines @@
 base::TimeDelta FakeCompositorTimingHistory::DrawDurationEstimate() const {
   return draw_duration_;
 }
 
 TestScheduler::TestScheduler(
     base::SimpleTestTickClock* now_src,
     SchedulerClient* client,
     const SchedulerSettings& scheduler_settings,
     int layer_tree_host_id,
     OrderedSimpleTaskRunner* task_runner,
-    BeginFrameSource* begin_frame_source,
     std::unique_ptr<CompositorTimingHistory> compositor_timing_history)
     : Scheduler(client,
                 scheduler_settings,
                 layer_tree_host_id,
                 task_runner,
-                begin_frame_source,
                 std::move(compositor_timing_history)),
       now_src_(now_src) {}
 
 base::TimeTicks TestScheduler::Now() const {
   return now_src_->NowTicks();
 }
 
 TestScheduler::~TestScheduler() {
 }
 
 }  // namespace cc