[vr] Bail on unhandled code points.

[vr] Bail on unhandled code points.

When we encounter a URL with glyphs we cannot render
we now exit VR mode. This CL also establishes an
"unsupported mode" enumeration and corresponding
metrics.

BUG=722861
Review-Url: https://codereview.chromium.org/2902393002
Cr-Original-Commit-Position: refs/heads/master@{#475222}
Review-Url: https://codereview.chromium.org/2914543002 .
Cr-Commit-Position: refs/branch-heads/3112@{#17}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/86a8661f2efe60271e9311d0cb9f03ecd8499940

[cjgrant, 2017-05-29 18:59:53]

Description was changed from

==========
[vr] Bail on unhandled code points.

When we encounter a URL with glyphs we cannot render
we now exit VR mode. This CL also establishes an
"unsupported mode" enumeration and corresponding
metrics.

BUG=722861

Review-Url: https://codereview.chromium.org/2902393002
Cr-Commit-Position: refs/heads/master@{#475222}
(cherry picked from commit 3181fb56c2c8a939c082f4711c985b7123e0b3e8)
==========

to

==========
[vr] Bail on unhandled code points.

When we encounter a URL with glyphs we cannot render
we now exit VR mode. This CL also establishes an
"unsupported mode" enumeration and corresponding
metrics.

BUG=722861

Review-Url: https://codereview.chromium.org/2902393002
Cr-Original-Commit-Position: refs/heads/master@{#475222}
Review-Url: https://codereview.chromium.org/2914543002 .
Cr-Commit-Position: refs/branch-heads/3112@{#17}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/86a8661f2efe60271e9311d0cb9f...
==========

[cjgrant, 2017-05-29 18:59:55]

Committed patchset #1 (id:1) manually as
86a8661f2efe60271e9311d0cb9f03ecd8499940.