Remove usage of FOR_EACH_OBSERVER macro in ui/views/.

Remove usage of FOR_EACH_OBSERVER macro in ui/views/.

Observer lists now support range-based for loops.

BUG=655021
Closed in favor of https://codereview.chromium.org/2418983002/

[loyso (OOO), 2016-10-14 03:52:55]

Description was changed from

==========
Remove usage of FOR_EACH_OBSERVER macro in ui/views/.

Observer lists now support range-based for loops.

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

to

==========
Remove usage of FOR_EACH_OBSERVER macro in ui/views/.

Observer lists now support range-based for loops.

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

[loyso (OOO), 2016-10-14 03:52:56]

loyso@chromium.org changed reviewers:
+ avi@chromium.org

[loyso (OOO), 2016-10-14 03:54:15]

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

[commit-bot: I haz the power, 2016-10-14 03:54:22]

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

[Avi (use Gerrit), 2016-10-14 04:01:31]

lgtm

[commit-bot: I haz the power, 2016-10-14 04:48:03]

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

[commit-bot: I haz the power, 2016-10-14 04:48:04]

Dry run: This issue passed the CQ dry run.

[loyso (OOO), 2016-10-16 23:36:27]

Description was changed from

==========
Remove usage of FOR_EACH_OBSERVER macro in ui/views/.

Observer lists now support range-based for loops.

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

to

==========
Remove usage of FOR_EACH_OBSERVER macro in ui/views/.

Observer lists now support range-based for loops.

BUG=655021

Closed in favor of https://codereview.chromium.org/2418983002/
==========