[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver

[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=601034
Committed: https://crrev.com/a42da0526ecd8890becdb10f334e41a0365d9d37
Cr-Commit-Position: refs/heads/master@{#385709}

[Marc Treib, 2016-04-07 10:11:57]

treib@chromium.org changed reviewers:
+ bauerb@chromium.org

[Marc Treib, 2016-04-07 10:11:58]

PTAL!

[Marc Treib, 2016-04-07 10:12:44]

Description was changed from

==========
[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=none
==========

to

==========
[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=601034
==========

[Bernhard Bauer, 2016-04-07 10:24:45]

lgtm

[Marc Treib, 2016-04-07 10:26:50]

The CQ bit was checked by treib@chromium.org

[commit-bot: I haz the power, 2016-04-07 10:27:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1864163006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1864163006/1

[commit-bot: I haz the power, 2016-04-07 10:59:45]

Description was changed from

==========
[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=601034
==========

to

==========
[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=601034
==========

[commit-bot: I haz the power, 2016-04-07 10:59:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-07 11:00:46]

Description was changed from

==========
[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=601034
==========

to

==========
[NTP Snippets] SnippetsController cleanup: remove SigninStateObserver
The logic for fetching snippets now lives on the C++ side.

BUG=601034

Committed: https://crrev.com/a42da0526ecd8890becdb10f334e41a0365d9d37
Cr-Commit-Position: refs/heads/master@{#385709}
==========

[commit-bot: I haz the power, 2016-04-07 11:00:47]

Patchset 1 (id:??) landed as
https://crrev.com/a42da0526ecd8890becdb10f334e41a0365d9d37
Cr-Commit-Position: refs/heads/master@{#385709}