Removes CAPTURE_VIDEO_OUTPUT permission since it is not needed
when using MediaProjection API and not allowed in Android Q.
This is a reland of af4f1b4127
Original change's description:
> Target SDK level 27 in AppRTCMobile.
>
> Implements the dynamic permission model required by the newer SDK and
> changes the theme.
>
> Bug: webrtc:8803
> Change-Id: I3ea23a25b27f196fcffd018c7cdd2ff6255b62d9
> Reviewed-on: https://webrtc-review.googlesource.com/44400
> Commit-Queue: Sami Kalliomäki <sakal@webrtc.org>
> Reviewed-by: Anders Carlsson <andersc@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#21788}
Bug: webrtc:8803
Change-Id: Ie79d7f7b9e8fea255581d3b56772b5bb6fffff4c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/139881
Commit-Queue: Sami Kalliomäki <sakal@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28137}
1df841d446