GitLab

r591131 unified code to close the overflow menu from the ui/layer, deleting
MediaRouterActionPlatformDelegate::CloseOverflowMenuIfOpen, removing the need
for a delegate. This CL removes the delegate interface and its implementations.
It should have no behavior change.

BUG=None

Change-Id: I54bba038673c6fbba2b84aa17ad63f4c9ed7e229
Reviewed-on: https://chromium-review.googlesource.com/1229776Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Derek Cheng <imcheng@chromium.org>
Commit-Queue: Karan Bhatia <karandeepb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592945}