Reset the OAuth2LoginManager fetchers when restoring a new session.

Reset the OAuth2LoginManager fetchers when restoring a new session.

This avoids DHECKing when a previous session has already been restored, when
using multi-profiles. OAuth2LoginManager should handle the session restore state
for multiple profiles once multi-profile support is added.

BUG=230342
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=195239

[Nikita (slow), 2013-04-18 17:21:07]

lgtm

[commit-bot: I haz the power, 2013-04-18 17:22:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joaodasilva@chromium.org/14354006/1

[commit-bot: I haz the power, 2013-04-18 18:01:40]

Sorry for I got bad news for ya.
Compile failed with a clobber build on win7_aura.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win7_aura&...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[commit-bot: I haz the power, 2013-04-18 19:45:49]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joaodasilva@chromium.org/14354006/1

[commit-bot: I haz the power, 2013-04-19 00:54:27]

Retried try job too often on win7_aura for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win7_aura&...

[commit-bot: I haz the power, 2013-04-19 07:01:21]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joaodasilva@chromium.org/14354006/1

[commit-bot: I haz the power, 2013-04-19 18:25:45]

Change committed as 195239