GitLab

Adding state guard to fix possible timing issue in
QuickAnswersMenuObserver and QuickAnswersControllerImpl.

Bug: b/163112381
Test: Manual Test
Change-Id: Ibde6a0c3d643d915ad5e2836e10ba45bae501ff9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2342140
Auto-Submit: Yue Li <updowndota@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Yue Li <updowndota@chromium.org>
Cr-Commit-Position: refs/heads/master@{#796924}