tree f9a4b1bb6dcb41a9ee5dc11f71bddcc771b207c6
parent 6501682e105e1a5c1dae48145555144e3bac291f
author wangqi <wangqi@google.com> 1515615426 -0800
committer Copybara-Service <copybara-piper@google.com> 1515621395 -0800

Update content description of back button on banner of RTT chat.

Bug: 70177426
Test: none
PiperOrigin-RevId: 181500079
Change-Id: Ia07e5fc487b9fe64ecfedb074a543fc993b303c4