tree fe53b84eb229120b7d75c7df8e79217c88a1d095
parent 4af9e700b055ed2796c225a85cbf824da28fae40
author Jinsuk Kim <jinsukkim@chromium.org> 1552352396 +0000
committer Commit Bot <commit-bot@chromium.org> 1552352396 +0000

Android: Fix Favicon NPE in accessibility mode

TabFavicon is Tab's UserData which should not be accessed after
Tab is destroyed or its WebContent is not ready yet. This CL adds
the corresponding check to avoid NPE that occurs when working
in accessibility mode, which attempts to access a Tab already
destroyed after an animation effect or Tab is not loaded with
a new WebContents object.

Bug: 940332
Change-Id: If77c0eab251fb0bc728f046605a9f6930187557b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1516116
Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639735}