tree db469816bab1d4adfb707e590052a5946fb2bfe6
parent f842039ce2157e50729a52615d43141607a67129
author Jingning Han <jingning@google.com> 1597980926 -0700
committer Jingning Han <jingning@google.com> 1600583736 -0700

Initial changes for forward key frame

Preliminary changes on forward key frame related control. The full
solution will be available after the main piece is landed.

STATS_CHANGED

Change-Id: Ifac204ad15adbbb1f3356db29189850a5260cc11