Remove usage of base::ObserverList<T>::Iter::GetNext() in //ipc.

Remove usage of base::ObserverList<T>::Iter::GetNext() in //ipc.

Observer lists now support range-based for loops.

BUG=655021
Committed: https://crrev.com/6b787f9b3c7e6237a0535211f40b37b9989021a4
Cr-Commit-Position: refs/heads/master@{#424912}

[dcheng, 2016-10-12 22:51:05]

The CQ bit was checked by dcheng@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-12 22:51:49]

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

[dcheng, 2016-10-12 23:06:02]

dcheng@chromium.org changed reviewers:
+ rockot@chromium.org

[Ken Rockot(use gerrit already), 2016-10-12 23:07:58]

lgtm

[dcheng, 2016-10-12 23:15:23]

The CQ bit was unchecked by dcheng@chromium.org

[dcheng, 2016-10-12 23:15:23]

The CQ bit was checked by dcheng@chromium.org

[commit-bot: I haz the power, 2016-10-12 23:15:36]

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, 2016-10-12 23:55:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-12 23:58:08]

Description was changed from

==========
Remove usage of base::ObserverList<T>::Iter::GetNext() in //ipc.

Observer lists now support range-based for loops.

BUG=655021
==========

to

==========
Remove usage of base::ObserverList<T>::Iter::GetNext() in //ipc.

Observer lists now support range-based for loops.

BUG=655021

Committed: https://crrev.com/6b787f9b3c7e6237a0535211f40b37b9989021a4
Cr-Commit-Position: refs/heads/master@{#424912}
==========

[commit-bot: I haz the power, 2016-10-12 23:58:08]

Patchset 1 (id:??) landed as
https://crrev.com/6b787f9b3c7e6237a0535211f40b37b9989021a4
Cr-Commit-Position: refs/heads/master@{#424912}