cc: Add SetChildrenNeedBeginFrames() & SendBeginFramesToChildren()

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/debug/trace_event.h"
 #include "cc/debug/benchmark_instrumentation.h"
 #include "cc/output/context_provider.h"
@@ skipping 615 matching lines @@
     DebugScopedSetMainThread main(this);
     next_frame_is_newly_committed_frame_ = false;
     layer_tree_host_->DidCommitAndDrawFrame();
   }
 }
 
 bool SingleThreadProxy::MainFrameWillHappenForTesting() {
   return false;
 }
 
+void SingleThreadProxy::SetChildrenNeedBeginFrames(
+    bool children_need_begin_frames) {
+  scheduler_on_impl_thread_->SetChildrenNeedBeginFrames(
+      children_need_begin_frames);
+}
+
 void SingleThreadProxy::WillBeginImplFrame(const BeginFrameArgs& args) {
   layer_tree_host_impl_->WillBeginImplFrame(args);
 }
 
 void SingleThreadProxy::ScheduledActionSendBeginMainFrame() {
   TRACE_EVENT0("cc", "SingleThreadProxy::ScheduledActionSendBeginMainFrame");
   // Although this proxy is single-threaded, it's problematic to synchronously
   // have BeginMainFrame happen after ScheduledActionSendBeginMainFrame.  This
   // could cause a commit to occur in between a series of SetNeedsCommit calls
   // (i.e. property modifications) causing some to fall on one frame and some to
@@ skipping 138 matching lines @@
 }
 
 base::TimeDelta SingleThreadProxy::CommitToActivateDurationEstimate() {
   return timing_history_.CommitToActivateDurationEstimate();
 }
 
 void SingleThreadProxy::DidBeginImplFrameDeadline() {
   layer_tree_host_impl_->ResetCurrentBeginFrameArgsForNextFrame();
 }
 
+void SingleThreadProxy::SendBeginFramesToChildren(const BeginFrameArgs& args) {
+  layer_tree_host_->SendBeginFramesToChildren(args);
+}
+
 }  // namespace cc