Revert of Remove default begin frame sources from the renderer

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 96703a2ef8672c9b27c1ad68291d9823ff6c3b89..3d8912ff46070192a2113bed0ed86403d1610f36 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -2360,6 +2360,13 @@
   CreateTileManagerResources();
   RecreateTreeResources();
 
+  // Initialize vsync parameters to sane values.
+  const base::TimeDelta display_refresh_interval =
+      base::TimeDelta::FromMicroseconds(
+          base::Time::kMicrosecondsPerSecond /
+          settings_.renderer_settings.refresh_rate);
+  CommitVSyncParameters(base::TimeTicks(), display_refresh_interval);
+
   // TODO(brianderson): Don't use a hard-coded parent draw time.
   base::TimeDelta parent_draw_time =
       (!settings_.use_external_begin_frame_source &&
@@ -2378,6 +2385,11 @@
   SetRequiresHighResToDraw();
 
   return true;
+}
+
+void LayerTreeHostImpl::CommitVSyncParameters(base::TimeTicks timebase,
+                                              base::TimeDelta interval) {
+  client_->CommitVSyncParameters(timebase, interval);
 }
 
 void LayerTreeHostImpl::SetBeginFrameSource(BeginFrameSource* source) {