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This CL implements timeout UI for SMS. I uploaded a screenshot of the
SMS dialog on the issue page.

Bug: 983325
Change-Id: I0299981a1efbc29cb78532cafb090425138c65cd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1727730
Commit-Queue: Jun Cai <juncai@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Theresa  <twellington@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#686575}