Remove SendBeginFramesToChildren plumbing

cc/trees/single_thread_proxy.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/trees/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/animation/animation_events.h"
@@ skipping 708 matching lines @@
 }
 
 bool SingleThreadProxy::MainFrameWillHappenForTesting() {
   if (layer_tree_host_->output_surface_lost())
     return false;
   if (!scheduler_on_impl_thread_)
     return false;
   return scheduler_on_impl_thread_->MainFrameForTestingWillHappen();
 }
 
-void SingleThreadProxy::SetChildrenNeedBeginFrames(
-    bool children_need_begin_frames) {
-  scheduler_on_impl_thread_->SetChildrenNeedBeginFrames(
-      children_need_begin_frames);
-}
-
 void SingleThreadProxy::SetAuthoritativeVSyncInterval(
     const base::TimeDelta& interval) {
   authoritative_vsync_interval_ = interval;
   if (synthetic_begin_frame_source_) {
     synthetic_begin_frame_source_->OnUpdateVSyncParameters(last_vsync_timebase_,
                                                            interval);
   }
 }
 
 void SingleThreadProxy::WillBeginImplFrame(const BeginFrameArgs& args) {
@@ skipping 160 matching lines @@
 
 void SingleThreadProxy::DidFinishImplFrame() {
   layer_tree_host_impl_->DidFinishImplFrame();
 #if DCHECK_IS_ON()
   DCHECK(inside_impl_frame_)
       << "DidFinishImplFrame called while not inside an impl frame!";
   inside_impl_frame_ = false;
 #endif
 }
 
-void SingleThreadProxy::SendBeginFramesToChildren(const BeginFrameArgs& args) {
-  layer_tree_host_->SendBeginFramesToChildren(args);
-}
-
 }  // namespace cc