cc: Add BeginFrameArgs

content/browser/android/content_view_core_impl.h

Index: content/browser/android/content_view_core_impl.h
diff --git a/content/browser/android/content_view_core_impl.h b/content/browser/android/content_view_core_impl.h
index 4581e69de484b610aab3ea77323e0ef096f24bf3..04dcaa934b4e4afca5e26cb8a5d78f19cd82fc02 100644
--- a/content/browser/android/content_view_core_impl.h
+++ b/content/browser/android/content_view_core_impl.h
@@ -297,7 +297,7 @@ class ContentViewCoreImpl : public ContentViewCore,
 
   void AttachLayer(scoped_refptr<cc::Layer> layer);
   void RemoveLayer(scoped_refptr<cc::Layer> layer);
-  void SetVSyncNotificationEnabled(bool enabled);
+  void SetNeedsBeginFrame(bool enabled);
   void SetNeedsAnimate();
 
  private:
@@ -349,6 +349,10 @@ class ContentViewCoreImpl : public ContentViewCore,
   // Device scale factor.
   float dpi_scale_;
 
+  // Variables used to keep track of frame timestamps and deadlines.
+  base::TimeDelta vsync_interval_;
+  base::TimeDelta expected_browser_composite_time_;
+
   // The Android view that can be used to add and remove decoration layers
   // like AutofillPopup.
   ui::ViewAndroid* view_android_;