Store element reference for event-bases too

Store element reference for event-bases too

Rather than using the (obviously "racy") technique of looking up the
event-base element again when disconnecting from it, store the reference
on connect (sharing storage with the sync-base element since they are
mutual exclusive) and use it to disconnect properly.

BUG=641437
Review-Url: https://codereview.chromium.org/2739893002
Cr-Commit-Position: refs/heads/master@{#455699}
Committed: https://chromium.googlesource.com/chromium/src/+/5e556038ac16e5447b8a89daa293d3d2c4f3a288

[fs, 2017-03-08 17:03:10]

The CQ bit was checked by fs@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2017-03-08 17:03:39]

Dry run: 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, 2017-03-08 18:56:51]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-08 18:56:52]

Dry run: Try jobs failed on following builders:
  mac_chromium_rel_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[fs, 2017-03-08 19:10:00]

The CQ bit was checked by fs@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2017-03-08 19:10:29]

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

[fs, 2017-03-08 20:03:20]

fs@opera.com changed reviewers:
+ pdr@chromium.org, schenney@chromium.org

[pdr., 2017-03-08 20:08:54]

On 2017/03/08 at 20:03:21, fs wrote:
> 

LGTM

[commit-bot: I haz the power, 2017-03-08 23:25:51]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-08 23:25:52]

Dry run: This issue passed the CQ dry run.

[fs, 2017-03-09 08:34:05]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2017-03-09 08:34:24]

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, 2017-03-09 08:38:23]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1489048445239280,
"parent_rev": "cf76ebadffe6439b23804274aa1fefc1538feac2", "commit_rev":
"5e556038ac16e5447b8a89daa293d3d2c4f3a288"}

[commit-bot: I haz the power, 2017-03-09 08:39:00]

Description was changed from

==========
Store element reference for event-bases too

Rather than using the (obviously "racy") technique of looking up the
event-base element again when disconnecting from it, store the reference
on connect (sharing storage with the sync-base element since they are
mutual exclusive) and use it to disconnect properly.

BUG=641437
==========

to

==========
Store element reference for event-bases too

Rather than using the (obviously "racy") technique of looking up the
event-base element again when disconnecting from it, store the reference
on connect (sharing storage with the sync-base element since they are
mutual exclusive) and use it to disconnect properly.

BUG=641437

Review-Url: https://codereview.chromium.org/2739893002
Cr-Commit-Position: refs/heads/master@{#455699}
Committed:
https://chromium.googlesource.com/chromium/src/+/5e556038ac16e5447b8a89daa293...
==========

[commit-bot: I haz the power, 2017-03-09 08:39:01]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/5e556038ac16e5447b8a89daa293...