GitLab

Record in the MediaRouter.Icon.Click.Location histogram whenever the
Cast dialog is opened via the "Cast..." item in the three-dots app menu.

Bug: 870032
Change-Id: I11fe3addaab40c1299bdc08dd0991fb3cb58f3c8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1906769
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Reviewed-by: Peter Boström <pbos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714578}