Fix ArcAppModelBuilderTest

chrome/browser/ui/app_list/arc/arc_app_test.h

Index: chrome/browser/ui/app_list/arc/arc_app_test.h
diff --git a/chrome/browser/ui/app_list/arc/arc_app_test.h b/chrome/browser/ui/app_list/arc/arc_app_test.h
index 497043bbd77bc2a1c299853de7ee444494762ec5..ad079d1ac7608699438653871007d943417e0a9f 100644
--- a/chrome/browser/ui/app_list/arc/arc_app_test.h
+++ b/chrome/browser/ui/app_list/arc/arc_app_test.h
@@ -27,6 +27,10 @@ class FakeChromeUserManager;
 class ScopedUserManagerEnabler;
 }
 
+namespace user_manager {
+class User;
+}
+
 class ArcAppListPrefs;
 class Profile;
 
@@ -70,7 +74,7 @@ class ArcAppTest {
   arc::ArcAuthService* arc_auth_service() { return auth_service_.get(); }
 
  private:
-  void CreateUserAndLogin();
+  const user_manager::User* CreateUserAndLogin();
   bool FindPackage(const arc::mojom::ArcPackageInfo& package);
 
   // Unowned pointer.