cc: Add queue of BeginFrames to support long deadlines.

cc/scheduler/scheduler.cc

Index: cc/scheduler/scheduler.cc
diff --git a/cc/scheduler/scheduler.cc b/cc/scheduler/scheduler.cc
index 21fff3a8bd972f8549002f7145d970a0c160c21e..4e78dbee15ef7e62e1ea84df6431c9d3161a12f4 100644
--- a/cc/scheduler/scheduler.cc
+++ b/cc/scheduler/scheduler.cc
@@ -195,8 +195,8 @@ void Scheduler::BeginFrame(const BeginFrameArgs& args) {
     // The impl thread doesn't have anything it wants to draw and we are just
     // waiting for a new active tree, so post the deadline for the next
     // expected BeginFrame start.
-    PostBeginFrameDeadline(last_begin_frame_args_.frame_time +
-                           last_begin_frame_args_.interval);
+    //PostBeginFrameDeadline(last_begin_frame_args_.frame_time + last_begin_frame_args_.interval);
+    PostBeginFrameDeadline(last_begin_frame_args_.deadline);
   }
 }