GitLab

Use Chrome's audio output for video stream, since it has a better av
sync performance.

AUDIO_PREFETCH is disabled for video stream. CastAudioManagerAndroid
uses that to determine which AudioOutputStream to use.

Bug: internal b/160753974
Test: Build, cast video and audio only app
Change-Id: I3d2fed2ba5902180a5c9f344390318e47a11e486
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2339448
Auto-Submit: Yuchen Liu <yucliu@chromium.org>
Commit-Queue: Kenneth MacKay <kmackay@chromium.org>
Reviewed-by: Kenneth MacKay <kmackay@chromium.org>
Cr-Commit-Position: refs/heads/master@{#795758}