Add FacingMode to the values returned from MediaStreamTrack.getSettings.

Add FacingMode to the values returned from MediaStreamTrack.getSettings.

Spec link:

https://w3c.github.io/mediacapture-main/getusermedia.html#dom-mediatracksettings-facingmode

Note on testing: Testing this properly at the JS API level requires the ability to insert fake devices with properties set by the test. That's too much for this CL.

Once https://codereview.chromium.org/2609863004/ lands, this can be manually tested on Chromebooks.

BUG=617142
Review-Url: https://codereview.chromium.org/2590193002
Cr-Commit-Position: refs/heads/master@{#445022}
(cherry picked from commit 2d50a1b3b003d4a51a8f2ff4153d29a0273586eb)

Review-Url: https://codereview.chromium.org/2663143002 .
Cr-Commit-Position: refs/branch-heads/2987@{#211}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed: https://chromium.googlesource.com/chromium/src/+/786385548e85c79e9cbbeac3ac79d1837a49e326

[wuchengli, 2017-01-31 02:56:12]

Description was changed from

==========
Add FacingMode to the values returned from MediaStreamTrack.getSettings.

Spec link:

https://w3c.github.io/mediacapture-main/getusermedia.html#dom-mediatracksetti...

Note on testing: Testing this properly at the JS API level requires the ability
to insert fake devices with properties set by the test. That's too much for this
CL.

Once https://codereview.chromium.org/2609863004/ lands, this can be manually
tested on Chromebooks.

BUG=617142

Review-Url: https://codereview.chromium.org/2590193002
Cr-Commit-Position: refs/heads/master@{#445022}
(cherry picked from commit 2d50a1b3b003d4a51a8f2ff4153d29a0273586eb)
==========

to

==========
Add FacingMode to the values returned from MediaStreamTrack.getSettings.

Spec link:

https://w3c.github.io/mediacapture-main/getusermedia.html#dom-mediatracksetti...

Note on testing: Testing this properly at the JS API level requires the ability
to insert fake devices with properties set by the test. That's too much for this
CL.

Once https://codereview.chromium.org/2609863004/ lands, this can be manually
tested on Chromebooks.

BUG=617142

Review-Url: https://codereview.chromium.org/2590193002
Cr-Commit-Position: refs/heads/master@{#445022}
(cherry picked from commit 2d50a1b3b003d4a51a8f2ff4153d29a0273586eb)

Review-Url: https://codereview.chromium.org/2663143002 .
Cr-Commit-Position: refs/branch-heads/2987@{#211}
Cr-Branched-From:
ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}
Committed:
https://chromium.googlesource.com/chromium/src/+/786385548e85c79e9cbbeac3ac79...
==========

[wuchengli, 2017-01-31 02:56:16]

Committed patchset #1 (id:1) manually as
786385548e85c79e9cbbeac3ac79d1837a49e326.