Revert 206020 "cc: Emulate BeginFrame in OutputSurfaces that don..."

trunk/src/cc/trees/layer_tree_host_impl.cc

Index: trunk/src/cc/trees/layer_tree_host_impl.cc
===================================================================
--- trunk/src/cc/trees/layer_tree_host_impl.cc	(revision 206654)
+++ trunk/src/cc/trees/layer_tree_host_impl.cc	(working copy)
@@ -1071,6 +1071,11 @@
   client_->SetNeedsRedrawRectOnImplThread(damage_rect);
 }
 
+void LayerTreeHostImpl::OnVSyncParametersChanged(base::TimeTicks timebase,
+                                                 base::TimeDelta interval) {
+  client_->OnVSyncParametersChanged(timebase, interval);
+}
+
 void LayerTreeHostImpl::BeginFrame(base::TimeTicks frame_time) {
   client_->BeginFrameOnImplThread(frame_time);
 }
@@ -1509,25 +1514,6 @@
     resource_provider_ = resource_provider.Pass();
   }
 
-  // Setup BeginFrameEmulation if it's not supported natively
-  if (!settings_.begin_frame_scheduling_enabled) {
-    const base::TimeDelta display_refresh_interval =
-      base::TimeDelta::FromMicroseconds(
-          base::Time::kMicrosecondsPerSecond /
-          settings_.refresh_rate);
-
-    output_surface->InitializeBeginFrameEmulation(
-        proxy_->ImplThread(),
-        settings_.throttle_frame_production,
-        display_refresh_interval);
-  }
-
-  int max_frames_pending =
-      output_surface->capabilities().max_frames_pending;
-  if (max_frames_pending <= 0)
-    max_frames_pending = FrameRateController::DEFAULT_MAX_FRAMES_PENDING;
-  output_surface->SetMaxFramesPending(max_frames_pending);
-
   output_surface_ = output_surface.Pass();
 
   if (!visible_)