Fix some thread safety violations in device::GvrDelegate implementation.

Fix some thread safety violations in device::GvrDelegate implementation.

Also fixes some missed nits in https://codereview.chromium.org/2562733002/

BUG=671302
Committed: https://crrev.com/25adbad06941a56f6ffe5a45ab8b50e9194ea487
Cr-Commit-Position: refs/heads/master@{#438587}

[mthiesse, 2016-12-13 23:42:32]

mthiesse@chromium.org changed reviewers:
+ bshe@chromium.org, klausw@chromium.org

[mthiesse, 2016-12-13 23:42:33]

PTAL

[bshe, 2016-12-14 16:29:02]

On 2016/12/13 23:42:33, mthiesse wrote:
> PTAL

lgtm

[mthiesse, 2016-12-14 16:38:24]

The CQ bit was checked by mthiesse@chromium.org

[commit-bot: I haz the power, 2016-12-14 16:38:44]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-14 19:26:50]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481733504785150, "parent_rev":
"bfe71070fc3e548817cfe9cdf7042271db13e470", "commit_rev":
"0ad7a50543469b20638bff2607dcfd6e7ae5554a"}

[commit-bot: I haz the power, 2016-12-14 19:27:13]

Description was changed from

==========
Fix some thread safety violations in device::GvrDelegate implementation.

Also fixes some missed nits in https://codereview.chromium.org/2562733002/

BUG=671302
==========

to

==========
Fix some thread safety violations in device::GvrDelegate implementation.

Also fixes some missed nits in https://codereview.chromium.org/2562733002/

BUG=671302

Review-Url: https://codereview.chromium.org/2571713006
==========

[commit-bot: I haz the power, 2016-12-14 19:27:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-14 19:31:07]

Description was changed from

==========
Fix some thread safety violations in device::GvrDelegate implementation.

Also fixes some missed nits in https://codereview.chromium.org/2562733002/

BUG=671302

Review-Url: https://codereview.chromium.org/2571713006
==========

to

==========
Fix some thread safety violations in device::GvrDelegate implementation.

Also fixes some missed nits in https://codereview.chromium.org/2562733002/

BUG=671302

Committed: https://crrev.com/25adbad06941a56f6ffe5a45ab8b50e9194ea487
Cr-Commit-Position: refs/heads/master@{#438587}
==========

[commit-bot: I haz the power, 2016-12-14 19:31:08]

Patchset 1 (id:??) landed as
https://crrev.com/25adbad06941a56f6ffe5a45ab8b50e9194ea487
Cr-Commit-Position: refs/heads/master@{#438587}