cc: Use BeginFrameArgs

cc/output/begin_frame_args.h

Index: cc/output/begin_frame_args.h
diff --git a/cc/output/begin_frame_args.h b/cc/output/begin_frame_args.h
index 22693dbef947dc814479b1cba52d58af149e2cbc..61d21952704ba116526f47f964e5b8223d3281c9 100644
--- a/cc/output/begin_frame_args.h
+++ b/cc/output/begin_frame_args.h
@@ -37,6 +37,10 @@ struct CC_EXPORT BeginFrameArgs {
   // retroactively.
   static base::TimeDelta DefaultRetroactiveBeginFramePeriod();
 
+  // For platforms that haven't yet moved to deadline scheduling, this will set
+  // the deadline to 0.
+  void AdjustDeadline(base::TimeDelta delta);
+
   bool IsValid() const {
     return interval >= base::TimeDelta();
   }