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 b31885214d4511db481af81d8cddc187b26c7610..ec2c9bd80d72189641e112f53cac8c2709eef932 100644
--- a/chrome/browser/ui/app_list/app_list_service_mac.mm
+++ b/chrome/browser/ui/app_list/app_list_service_mac.mm
@@ -76,7 +76,6 @@ class AppListServiceMac : public AppListServiceImpl,
 
   // AppListServiceImpl overrides:
   virtual void CreateShortcut() OVERRIDE;
-  virtual void OnSigninStatusChanged() OVERRIDE;
 
   // AppShimHandler overrides:
   virtual void OnShimLaunch(apps::AppShimHandler::Host* host,
@@ -405,10 +404,6 @@ 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();