Part of multiprofile implementation.

chrome/browser/chromeos/login/user_manager_impl.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/user_manager_impl.h"
 
 #include <cstddef>
 #include <set>
 #include <vector>
 
@@ skipping 637 matching lines @@
           device_local_account_policy_service_->AddObserver(this);
       }
       CheckOwnership();
       RetrieveTrustedDevicePolicies();
       break;
     case chrome::NOTIFICATION_PROFILE_ADDED:
       if (IsUserLoggedIn() && !IsLoggedInAsGuest() &&
           !IsLoggedInAsLocallyManagedUser()) {
         Profile* profile = content::Source<Profile>(source).ptr();
         if (!profile->IsOffTheRecord() &&
+            // TODO: Mayby we should observe all logged in user's profiles.

[Nikita (slow), 2013/04/04 12:59:13]

Please change to TODO(nkostylev)

             profile == ProfileManager::GetDefaultProfile()) {
           DCHECK(NULL == observed_sync_service_);
           observed_sync_service_ =
               ProfileSyncServiceFactory::GetForProfile(profile);
           if (observed_sync_service_)
             observed_sync_service_->AddObserver(this);
         }
       }
       break;
     case chrome::NOTIFICATION_SYSTEM_SETTING_CHANGED:
@@ skipping 625 matching lines @@
       content::NotificationService::NoDetails());
 }
 
 void UserManagerImpl::NotifyMergeSessionStateChanged() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   FOR_EACH_OBSERVER(UserManager::Observer, observer_list_,
                     MergeSessionStateChanged(merge_session_state_));
 }
 
 }  // namespace chromeos