GitLab

Relanding crrev.com/c/1955086 with a fix for crbug.com/1043484.

The only difference from the original patch is in
media_notification_service.cc where we now call
WebContentsPresentationManager::RemoveObserver() from
MediaNotificationService::Session::~Session() before an early exit, so
that it always gets called.

Original message:
When a Cast session is initiated from a web page and the page doesn't
get rid of its media session, we generally get duplicate media
notification items: one for the sender page and the other from the
receiver. This CL hides the former in such cases.

Bug: 1038447
Change-Id: I09a074ec4d08a1c19dc21de925c1974b5f9f47dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2013631Reviewed-by: Tommy Steimel <steimel@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734260}