GitLab

Renamed MenuButtonEventHandler to MenuButtonController since it contains more than just EventHandling logic.

Bug: 901183
Change-Id: Ibb983144b9f5713d69298ca5dff13dc3de9d7c65
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1539917Reviewed-by: Trent Apted <tapted@chromium.org>
Commit-Queue: Charlene Yan <cyan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#644615}