Move signin status and current user information into AppListModel.

chrome/browser/ui/app_list/app_list_service_mac.mm

Index: chrome/browser/ui/app_list/app_list_service_mac.mm
diff --git a/chrome/browser/ui/app_list/app_list_service_mac.mm b/chrome/browser/ui/app_list/app_list_service_mac.mm
index 56b9db4639e13a1d1b361286307aff7ea1c7a136..fdd34d8d74be1ba11b04735c1a250dd172c93a39 100644
--- a/chrome/browser/ui/app_list/app_list_service_mac.mm
+++ b/chrome/browser/ui/app_list/app_list_service_mac.mm
@@ -71,7 +71,6 @@ class AppListServiceMac : public AppListServiceImpl,
 
   // AppListServiceImpl overrides:
   virtual void CreateShortcut() OVERRIDE;
-  virtual void OnSigninStatusChanged() OVERRIDE;
 
   // AppShimHandler overrides:
   virtual void OnShimLaunch(apps::AppShimHandler::Host* host,
@@ -366,10 +365,6 @@ NSWindow* AppListServiceMac::GetAppListWindow() {
   return [window_controller_ window];
 }
 
-void AppListServiceMac::OnSigninStatusChanged() {
-  [[window_controller_ appListViewController] onSigninStatusChanged];
-}
-
 void AppListServiceMac::OnShimLaunch(apps::AppShimHandler::Host* host,
                                      apps::AppShimLaunchType launch_type) {
   Show();