GitLab

Added tests for dialog messages, and refactored tests
by combining 2 similar tests together.
This should reduce overall overhead on the
bots and maybe help keep test time within
timeout limits.

Bug: 946273
Change-Id: I8f0c3ee98c308b45a3ce56eb6fb72931170ec477
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1616718Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661242}