[Signin iOS] Reload the Account Selector screen when identities change

[Signin iOS] Reload the Account Selector screen when identities change

The model was already being reloaded but not the the collection view,
this could cause crashes as the collection view and its model were not
in sync anymore. The collection view is now reloaded as well.

BUG=680098
Review-Url: https://codereview.chromium.org/2622103005
Cr-Commit-Position: refs/heads/master@{#443243}
Committed: https://chromium.googlesource.com/chromium/src/+/bba0e6692f70aa800b78bedcba9bc3d8ae6fff26

[bzanotti, 2017-01-12 14:40:21]

bzanotti@chromium.org changed reviewers:
+ lpromero@chromium.org

[bzanotti, 2017-01-12 14:40:22]

Please take a look.

[lpromero, 2017-01-12 15:42:45]

The CQ bit was checked by lpromero@chromium.org

[lpromero, 2017-01-12 15:42:45]

lgtm

[commit-bot: I haz the power, 2017-01-12 15:43:14]

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, 2017-01-12 15:53:56]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484235765245290, "parent_rev":
"73e78aa87d647cba7ffa355e39fa55644a1dc2ec", "commit_rev":
"bba0e6692f70aa800b78bedcba9bc3d8ae6fff26"}

[commit-bot: I haz the power, 2017-01-12 15:54:27]

Description was changed from

==========
[Signin iOS] Reload the Account Selector screen when identities change

The model was already being reloaded but not the the collection view,
this could cause crashes as the collection view and its model were not
in sync anymore. The collection view is now reloaded as well.

BUG=680098
==========

to

==========
[Signin iOS] Reload the Account Selector screen when identities change

The model was already being reloaded but not the the collection view,
this could cause crashes as the collection view and its model were not
in sync anymore. The collection view is now reloaded as well.

BUG=680098

Review-Url: https://codereview.chromium.org/2622103005
Cr-Commit-Position: refs/heads/master@{#443243}
Committed:
https://chromium.googlesource.com/chromium/src/+/bba0e6692f70aa800b78bedcba9b...
==========

[commit-bot: I haz the power, 2017-01-12 15:54:28]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/bba0e6692f70aa800b78bedcba9b...