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

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

Observer lists now support range-based for loops.

BUG=655021
Committed: https://crrev.com/ea68766deda7cb89f2f08e1ca816f9666a95c3bd
Cr-Commit-Position: refs/heads/master@{#425066}

[dcheng, 2016-10-12 22:48:47]

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

[commit-bot: I haz the power, 2016-10-12 22:49:15]

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 22:54:12]

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

[commit-bot: I haz the power, 2016-10-12 23:40:43]

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

[commit-bot: I haz the power, 2016-10-12 23:40:45]

Dry run: This issue passed the CQ dry run.

[ncarter (slow), 2016-10-13 16:53:46]

lgtm

[ncarter (slow), 2016-10-13 16:53:49]

The CQ bit was checked by nick@chromium.org

[commit-bot: I haz the power, 2016-10-13 16:54:12]

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, 2016-10-13 17:00:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-13 17:02:44]

Description was changed from

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

Observer lists now support range-based for loops.

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

to

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

Observer lists now support range-based for loops.

BUG=655021

Committed: https://crrev.com/ea68766deda7cb89f2f08e1ca816f9666a95c3bd
Cr-Commit-Position: refs/heads/master@{#425066}
==========

[commit-bot: I haz the power, 2016-10-13 17:02:45]

Patchset 1 (id:??) landed as
https://crrev.com/ea68766deda7cb89f2f08e1ca816f9666a95c3bd
Cr-Commit-Position: refs/heads/master@{#425066}