Reduce FOR_EACH_OBSERVER usage in extensions

Reduce FOR_EACH_OBSERVER usage in extensions

Observer lists now support range-based for loops.

BUG=655021
Committed: https://crrev.com/d1e2815e0685cff01fabe8a34c45ece45ef2d4b0
Cr-Commit-Position: refs/heads/master@{#425800}

[Eric Willigers, 2016-10-15 09:41:49]

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

[commit-bot: I haz the power, 2016-10-15 09:42:00]

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, 2016-10-15 10:27:49]

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

[commit-bot: I haz the power, 2016-10-15 10:27:50]

Dry run: Exceeded global retry quota

[Eric Willigers, 2016-10-15 13:04:55]

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

[commit-bot: I haz the power, 2016-10-15 13:05:07]

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, 2016-10-15 13:21:36]

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

[commit-bot: I haz the power, 2016-10-15 13:21:37]

Dry run: Try jobs failed on following builders:
  linux_chromium_chromeos_ozone_rel_ng on master.tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[Eric Willigers, 2016-10-16 20:33:40]

ericwilligers@chromium.org changed reviewers:
+ asargent@chromium.org

[asargent_no_longer_on_chrome, 2016-10-17 20:46:30]

lgtm

[Eric Willigers, 2016-10-17 21:31:55]

The CQ bit was checked by ericwilligers@chromium.org

[commit-bot: I haz the power, 2016-10-17 21:32:49]

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, 2016-10-17 22:53:40]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-10-17 22:55:43]

Description was changed from

==========
Reduce FOR_EACH_OBSERVER usage in extensions

Observer lists now support range-based for loops.


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

to

==========
Reduce FOR_EACH_OBSERVER usage in extensions

Observer lists now support range-based for loops.

BUG=655021

Committed: https://crrev.com/d1e2815e0685cff01fabe8a34c45ece45ef2d4b0
Cr-Commit-Position: refs/heads/master@{#425800}
==========

[commit-bot: I haz the power, 2016-10-17 22:55:44]

Patchset 2 (id:??) landed as
https://crrev.com/d1e2815e0685cff01fabe8a34c45ece45ef2d4b0
Cr-Commit-Position: refs/heads/master@{#425800}