[Merge to M65]Fix crash when open new tab from eol notification in guest session

TBR=skuhne@chromium.org,xiyuan@chromium.org
(cherry picked from commit 3327cfed3f0a3d7dca70057cafa0d271e20daeff)

Bug: 809271
Change-Id: I769b03038509625eeade3fb4787d0d73ff105f03
Reviewed-on: https://chromium-review.googlesource.com/924755
Reviewed-by: Stefan Kuhne <skuhne@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Commit-Queue: Xiaoyin Hu <xiaoyinh@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#538477}
Reviewed-on: https://chromium-review.googlesource.com/936042
Reviewed-by: Xiaoyin Hu <xiaoyinh@chromium.org>
Cr-Commit-Position: refs/branch-heads/3325@{#581}
Cr-Branched-From: bc084a8b5afa3744a74927344e304c02ae54189f-refs/heads/master@{#530369}
1 file changed