Implements the feature notification for Quick Unlock

chrome/browser/chromeos/login/session/user_session_manager.cc

Index: chrome/browser/chromeos/login/session/user_session_manager.cc
diff --git a/chrome/browser/chromeos/login/session/user_session_manager.cc b/chrome/browser/chromeos/login/session/user_session_manager.cc
index f461799aa41dbea7994e0110f96a3cb2ddf71a97..774e20b711a8b4d1b2d103934475aec564de7ce1 100644
--- a/chrome/browser/chromeos/login/session/user_session_manager.cc
+++ b/chrome/browser/chromeos/login/session/user_session_manager.cc
@@ -1740,6 +1740,17 @@ void UserSessionManager::DoBrowserLaunchInternal(Profile* profile,
   if (HatsNotificationController::ShouldShowSurveyToProfile(profile))
     hats_notification_controller_ = new HatsNotificationController(profile);
 
+  if (quickunlock::FeatureNotificationController::
+          ShouldShowNotificationToProfile(profile)) {
+    if (qu_feature_notification_handler_.find(profile) ==
+        qu_feature_notification_handler_.end()) {
+      auto qu_feature_notification_controller =
+          new quickunlock::FeatureNotificationController(profile);
+      qu_feature_notification_handler_.insert(

[jdufault, 2016/07/06 21:06:43]

The notification should only be launched after the user has unlocked the device
(so not after signing in, but after unlocking).

This is probably a good place to put the check: 
https://cs.chromium.org/chromium/src/chrome/browser/chromeos/login/lock/scree...

[malaykeshav, 2016/07/07 21:39:22]

Done

+          std::make_pair(profile, qu_feature_notification_controller));
+    }
+  }
+
   // Mark login host for deletion after browser starts.  This
   // guarantees that the message loop will be referenced by the
   // browser before it is dereferenced by the login host.