Remove usage of FOR_EACH_OBSERVER macro in storage

Remove usage of FOR_EACH_OBSERVER macro in storage

Observer lists now support range-based for loops.

BUG=655021
Committed: https://crrev.com/e0abdc20ecc4456af20381bdb5578129f96f70e4
Cr-Commit-Position: refs/heads/master@{#425754}

[Eric Willigers, 2016-10-15 11:25:51]

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

[commit-bot: I haz the power, 2016-10-15 11:25:55]

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 12:13:51]

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

[commit-bot: I haz the power, 2016-10-15 12:13:52]

Dry run: This issue passed the CQ dry run.

[Eric Willigers, 2016-10-15 13:11:05]

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

[kinuko, 2016-10-17 13:32:38]

lgtm

[Eric Willigers, 2016-10-17 18:45:03]

The CQ bit was checked by ericwilligers@chromium.org

[commit-bot: I haz the power, 2016-10-17 18:45:47]

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 19:47:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-17 19:51:19]

Description was changed from

==========
Remove usage of FOR_EACH_OBSERVER macro in storage

Observer lists now support range-based for loops.


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

to

==========
Remove usage of FOR_EACH_OBSERVER macro in storage

Observer lists now support range-based for loops.

BUG=655021

Committed: https://crrev.com/e0abdc20ecc4456af20381bdb5578129f96f70e4
Cr-Commit-Position: refs/heads/master@{#425754}
==========

[commit-bot: I haz the power, 2016-10-17 19:51:19]

Patchset 1 (id:??) landed as
https://crrev.com/e0abdc20ecc4456af20381bdb5578129f96f70e4
Cr-Commit-Position: refs/heads/master@{#425754}