The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b0a34cb69bdca47cfe3dd3d1cead96446391dcbf

commit b0a34cb69bdca47cfe3dd3d1cead96446391dcbf
Author: zqzhang <zqzhang@chromium.org>
Date: Mon Feb 06 11:36:56 2017

[Media>UI] Reset media metadata when navigating away

There is a bug caused by media metadata being not properly reset when
navigating away, so that the notification title and artist stays the
same when the new page starts to play media. This CL fixes the issue.

BUG= 687973 

Review-Url: https://codereview.chromium.org/2675693004
Cr-Commit-Position: refs/heads/master@{#448231}

[modify] https://crrev.com/b0a34cb69bdca47cfe3dd3d1cead96446391dcbf/chrome/android/java/src/org/chromium/chrome/browser/media/ui/MediaSessionTabHelper.java
[modify] https://crrev.com/b0a34cb69bdca47cfe3dd3d1cead96446391dcbf/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTitleUpdatedTest.java

Your change meets the bar and is auto-approved for M57. Please go ahead and merge the CL to branch 2987 manually. Please contact milestone owner if you have questions.
Owners: amineer@(clank), cmasso@(bling), ketakid@(cros), govind@(desktop)

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

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b28681089588dd01dde75af82f849a80febebea0

commit b28681089588dd01dde75af82f849a80febebea0
Author: Zhiqiang Zhang <zqzhang@google.com>
Date: Mon Feb 06 12:47:16 2017

[Media>UI] Reset media metadata when navigating away

There is a bug caused by media metadata being not properly reset when
navigating away, so that the notification title and artist stays the
same when the new page starts to play media. This CL fixes the issue.

BUG= 687973 

Review-Url: https://codereview.chromium.org/2675693004
Cr-Commit-Position: refs/heads/master@{#448231}
(cherry picked from commit b0a34cb69bdca47cfe3dd3d1cead96446391dcbf)

Review-Url: https://codereview.chromium.org/2678803002 .
Cr-Commit-Position: refs/branch-heads/2987@{#321}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}

[modify] https://crrev.com/b28681089588dd01dde75af82f849a80febebea0/chrome/android/java/src/org/chromium/chrome/browser/media/ui/MediaSessionTabHelper.java
[modify] https://crrev.com/b28681089588dd01dde75af82f849a80febebea0/chrome/android/javatests/src/org/chromium/chrome/browser/media/ui/NotificationTitleUpdatedTest.java