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At the moment, we only notify the player if it was playing. This will
notify the player all the time but only pause it if it is playing.

Bug: 845560
Change-Id: Ifceafbc5eaa79927935ed4b5f50a147b03f955b5
Reviewed-on: https://chromium-review.googlesource.com/1069713
Commit-Queue: Mounir Lamouri <mlamouri@chromium.org>
Reviewed-by: apacible <apacible@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561648}