Remove FOR_EACH_OBSERVER macro usage in chrome/browser/sync_file_system

Remove FOR_EACH_OBSERVER macro usage in chrome/browser/sync_file_system

Observer lists now support range-based for loops.

BUG=655021
Committed: https://crrev.com/dd556481d2bcd71877cd7d86276177f0978df052
Cr-Commit-Position: refs/heads/master@{#425613}

[Eric Willigers, 2016-10-16 23:55:14]

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

[commit-bot: I haz the power, 2016-10-16 23:55:29]

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, 2016-10-17 00:39:38]

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

[commit-bot: I haz the power, 2016-10-17 00:39:39]

Dry run: This issue passed the CQ dry run.

[Eric Willigers, 2016-10-17 00:48:49]

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

[tzik, 2016-10-17 03:28:19]

lgtm

[Eric Willigers, 2016-10-17 03:31:49]

The CQ bit was checked by ericwilligers@chromium.org

[commit-bot: I haz the power, 2016-10-17 03:32:04]

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 03:37:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-17 03:40:04]

Description was changed from

==========
Remove FOR_EACH_OBSERVER macro usage in chrome/browser/sync_file_system

Observer lists now support range-based for loops.


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

to

==========
Remove FOR_EACH_OBSERVER macro usage in chrome/browser/sync_file_system

Observer lists now support range-based for loops.

BUG=655021

Committed: https://crrev.com/dd556481d2bcd71877cd7d86276177f0978df052
Cr-Commit-Position: refs/heads/master@{#425613}
==========

[commit-bot: I haz the power, 2016-10-17 03:40:05]

Patchset 1 (id:??) landed as
https://crrev.com/dd556481d2bcd71877cd7d86276177f0978df052
Cr-Commit-Position: refs/heads/master@{#425613}