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 8aa57c3748c691bae5394d3d9c788e86eceae062..7c0e37dede9bad9dc9a80e3453b6653d4652c093 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,
@@ -369,10 +368,6 @@ 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();