Revert of Enable BeginFrame scheduling on aura

ui/compositor/compositor.h

Index: ui/compositor/compositor.h
diff --git a/ui/compositor/compositor.h b/ui/compositor/compositor.h
index 545684dae70f2e7892de583f060a0f4ba5ee3566..5a6d93290350c5f67fc0035804c3478803d49cc0 100644
--- a/ui/compositor/compositor.h
+++ b/ui/compositor/compositor.h
@@ -218,16 +218,11 @@
   // Gets the visibility of the underlying compositor.
   bool IsVisible();
 
-  // The "authoritative" vsync interval, if provided, will override interval
-  // reported from 3D context. This is typically the value reported by a more
-  // reliable source, e.g, the platform display configuration.
-  // In the particular case of ChromeOS -- this is the value queried through
-  // XRandR, which is more reliable than the value queried through the 3D
-  // context.
-  void SetAuthoritativeVSyncInterval(const base::TimeDelta& interval);
-
   // Returns the widget for this compositor.
   gfx::AcceleratedWidget widget() const { return widget_; }
+
+  // Returns the vsync manager for this compositor.
+  scoped_refptr<CompositorVSyncManager> vsync_manager() const;
 
   // Returns the main thread task runner this compositor uses. Users of the
   // compositor generally shouldn't use this.
@@ -340,6 +335,9 @@
   scoped_ptr<cc::LayerTreeHost> host_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
+  // The manager of vsync parameters for this compositor.
+  scoped_refptr<CompositorVSyncManager> vsync_manager_;
+
   // The device scale factor of the monitor that this compositor is compositing
   // layers on.
   float device_scale_factor_;