Revert of Enable BeginFrame scheduling on aura

content/browser/compositor/delegated_frame_host.cc

Index: content/browser/compositor/delegated_frame_host.cc
diff --git a/content/browser/compositor/delegated_frame_host.cc b/content/browser/compositor/delegated_frame_host.cc
index 98d7ac172c0a69a99431f349bd6863ecc44d849c..f45e7f40c1c3028defaba8746b6d81954ee7bd0f 100644
--- a/content/browser/compositor/delegated_frame_host.cc
+++ b/content/browser/compositor/delegated_frame_host.cc
@@ -888,10 +888,13 @@
   DCHECK(!compositor_);
 }
 
-void DelegatedFrameHost::SetVSyncParameters(base::TimeTicks timebase,
-                                            base::TimeDelta interval) {
+void DelegatedFrameHost::OnUpdateVSyncParameters(
+    base::TimeTicks timebase,
+    base::TimeDelta interval) {
   vsync_timebase_ = timebase;
   vsync_interval_ = interval;
+  if (client_->DelegatedFrameHostIsVisible())
+    client_->DelegatedFrameHostUpdateVSyncParameters(timebase, interval);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -917,6 +920,8 @@
     surface_factory_->Destroy(surface_id_);
   if (resource_collection_.get())
     resource_collection_->SetClient(NULL);
+
+  DCHECK(!vsync_manager_.get());
 }
 
 void DelegatedFrameHost::RunOnCommitCallbacks() {
@@ -943,6 +948,9 @@
     return;
   compositor_ = compositor;
   compositor_->AddObserver(this);
+  DCHECK(!vsync_manager_.get());
+  vsync_manager_ = compositor_->vsync_manager();
+  vsync_manager_->AddObserver(this);
 }
 
 void DelegatedFrameHost::ResetCompositor() {
@@ -955,6 +963,10 @@
   }
   if (compositor_->HasObserver(this))
     compositor_->RemoveObserver(this);
+  if (vsync_manager_.get()) {
+    vsync_manager_->RemoveObserver(this);
+    vsync_manager_ = NULL;
+  }
   compositor_ = nullptr;
 }