Ensure navigator.getVRDisplays always resolves.

Ensure navigator.getVRDisplays always resolves.

Second attempt at landing. See https://codereview.chromium.org/2614873002/

In the case that the backing VR service is not available the call will now
resolve to an empty array.

BUG=678283
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
TBR=rockot@chromium.org, alexmos@chromium.org

Review-Url: https://codereview.chromium.org/2630003002
Cr-Commit-Position: refs/heads/master@{#443791}
(cherry picked from commit a74a47aec12401d3ea3643aea1d8b66d908c32cc)

Review-Url: https://codereview.chromium.org/2635293002 .
Cr-Commit-Position: refs/branch-heads/2924@{#780}
Cr-Branched-From: 3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed: https://chromium.googlesource.com/chromium/src/+/b963393a689eccefe4d9a72c58fca36c05056c18

[bajones, 2017-01-17 18:21:05]

Description was changed from

==========
Ensure navigator.getVRDisplays always resolves.

Second attempt at landing. See https://codereview.chromium.org/2614873002/

In the case that the backing VR service is not available the call will now
resolve to an empty array.

BUG=678283
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
TBR=rockot@chromium.org, alexmos@chromium.org

Review-Url: https://codereview.chromium.org/2630003002
Cr-Commit-Position: refs/heads/master@{#443791}
(cherry picked from commit a74a47aec12401d3ea3643aea1d8b66d908c32cc)
==========

to

==========
Ensure navigator.getVRDisplays always resolves.

Second attempt at landing. See https://codereview.chromium.org/2614873002/

In the case that the backing VR service is not available the call will now
resolve to an empty array.

BUG=678283
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
TBR=rockot@chromium.org, alexmos@chromium.org

Review-Url: https://codereview.chromium.org/2630003002
Cr-Commit-Position: refs/heads/master@{#443791}
(cherry picked from commit a74a47aec12401d3ea3643aea1d8b66d908c32cc)

Review-Url: https://codereview.chromium.org/2635293002 .
Cr-Commit-Position: refs/branch-heads/2924@{#780}
Cr-Branched-From:
3a87aecc31cd1ffe751dd72c04e5a96a1fc8108a-refs/heads/master@{#433059}
Committed:
https://chromium.googlesource.com/chromium/src/+/b963393a689eccefe4d9a72c58fc...
==========

[bajones, 2017-01-17 18:21:06]

Committed patchset #1 (id:1) manually as
b963393a689eccefe4d9a72c58fca36c05056c18.