Avoid data race on Database::m_opened.

Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=michaeln
BUG=580994
Committed: https://crrev.com/f935fbb21ab195c371509616e2c350c8790a128d
Cr-Commit-Position: refs/heads/master@{#375353}

[sof, 2016-02-12 21:57:40]

Description was changed from

==========
Avoid data race on Database::m_opened.

R=
BUG=580994
==========

to

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=
BUG=580994
==========

[sof, 2016-02-12 21:59:08]

sigbjornf@opera.com changed reviewers:
+ michaeln@chromium.org, tkent@chromium.org

[sof, 2016-02-12 21:59:08]

please take a look.

[michaeln, 2016-02-13 02:14:27]

lgtm

[michaeln, 2016-02-13 02:15:03]

and thank you!

[sof, 2016-02-13 06:08:46]

Description was changed from

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=
BUG=580994
==========

to

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=michaeln
BUG=580994
==========

[sof, 2016-02-13 06:08:55]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2016-02-13 06:09:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1694893002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1694893002/40001

[commit-bot: I haz the power, 2016-02-13 07:13:00]

Description was changed from

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=michaeln
BUG=580994
==========

to

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=michaeln
BUG=580994
==========

[commit-bot: I haz the power, 2016-02-13 07:13:00]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-02-16 22:47:36]

Description was changed from

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=michaeln
BUG=580994
==========

to

==========
Avoid data race on Database::m_opened.

Upon closing, the database thread will transition m_opened
to |false|. Do that atomically so as to avoid a race when
other threads check opened() status.

R=michaeln
BUG=580994

Committed: https://crrev.com/f935fbb21ab195c371509616e2c350c8790a128d
Cr-Commit-Position: refs/heads/master@{#375353}
==========

[commit-bot: I haz the power, 2016-02-16 22:47:36]

Patchset 3 (id:??) landed as
https://crrev.com/f935fbb21ab195c371509616e2c350c8790a128d
Cr-Commit-Position: refs/heads/master@{#375353}