The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/045de9e53df333233016b5fb17bf5a04ed36556d

commit 045de9e53df333233016b5fb17bf5a04ed36556d
Author: John Williams <jrw@google.com>
Date: Wed Oct 17 21:33:53 2018

Set status to "Stop casting" when user overs on stop icon.

Bug:  893311 
Change-Id: I5479bf30aad7801234144b475ebed6f975760afc
Reviewed-on: https://chromium-review.googlesource.com/c/1281878
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Reviewed-by: Takumi Fujimoto <takumif@chromium.org>
Commit-Queue: John Williams <jrw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#600565}
[modify] https://crrev.com/045de9e53df333233016b5fb17bf5a04ed36556d/chrome/app/media_router_strings.grdp
[modify] https://crrev.com/045de9e53df333233016b5fb17bf5a04ed36556d/chrome/browser/ui/views/media_router/cast_dialog_sink_button.cc
[modify] https://crrev.com/045de9e53df333233016b5fb17bf5a04ed36556d/chrome/browser/ui/views/media_router/cast_dialog_sink_button.h
[modify] https://crrev.com/045de9e53df333233016b5fb17bf5a04ed36556d/chrome/browser/ui/views/media_router/cast_dialog_sink_button_unittest.cc

This change includes a localized string, BTW.  Does that affect whether we can merge it into M71?

This bug requires manual review: There is .grd file changes and we are only 46 days from stable.
Please contact the milestone owner if you have questions.
Owners: benmason@(Android), kariahda@(iOS), kbleicher@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Pls apply applicable OSs label. Thank you.

This is P3 , Type: Feature and require localization of string for M71 so rejecting merge to M71. Pls let me know if there is any concern here. Thank you.

I believe no further work is necessary here.