tree bc17eb820a6c1576e937ed8466100ccf2474d77b
parent f0a9f372a94533d302cffe5fb641447ba2ce5010
author fayang <fayang@google.com> 1558021166 -0700
committer Copybara-Service <copybara-worker@google.com> 1558027539 -0700

Add logging only ack_frame accessor.

gfe-relnote: n/a (logging only change)
PiperOrigin-RevId: 248533601
Change-Id: I1a72e6caed4c322ede61f4378f42ffbc161d55a7