GitLab

Do not take an accessibility snapshot if the RenderFrame is gone.

Bug: 1133983
Change-Id: I612cc72936a1dcedc5180c24eae067e47237b09b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2442375Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812851}