Move signin status and current user information into AppListModel.

ui/app_list/test/app_list_test_view_delegate.cc

Index: ui/app_list/test/app_list_test_view_delegate.cc
diff --git a/ui/app_list/test/app_list_test_view_delegate.cc b/ui/app_list/test/app_list_test_view_delegate.cc
index 3e7b2df69cc0d5013168fd9be4cd07feeeb99fe9..1a567145250d0fd3b988fd6dbfd198ad647c917a 100644
--- a/ui/app_list/test/app_list_test_view_delegate.cc
+++ b/ui/app_list/test/app_list_test_view_delegate.cc
@@ -44,13 +44,5 @@ gfx::ImageSkia AppListTestViewDelegate::GetWindowIcon() {
   return gfx::ImageSkia();
 }
 
-base::string16 AppListTestViewDelegate::GetCurrentUserName() {
-  return base::string16();
-}
-
-base::string16 AppListTestViewDelegate::GetCurrentUserEmail() {
-  return base::string16();
-}
-
 }  // namespace test
 }  // namespace app_list