GitLab

- NotificationViewMDTest.TestClick
- NotificationViewMDTest.TestClickExpanded

I found the tests were missing during working around here.

Bug: 869278
Test: trybots pass

Change-Id: Ieb428fa8884755ed63ea2fe6d1c346629ab35ed8
Reviewed-on: https://chromium-review.googlesource.com/1158448Reviewed-by: Tetsui Ohkubo <tetsui@chromium.org>
Commit-Queue: Yoshiki Iguchi <yoshiki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580109}