| Index: ios/chrome/browser/ui/authentication/BUILD.gn | 
| diff --git a/ios/chrome/browser/ui/authentication/BUILD.gn b/ios/chrome/browser/ui/authentication/BUILD.gn | 
| index e55edee76c09755e15c9f9c953261ec292abf8d3..1921a6b433686ea6d8adbb82d43cde099ecba760 100644 | 
| --- a/ios/chrome/browser/ui/authentication/BUILD.gn | 
| +++ b/ios/chrome/browser/ui/authentication/BUILD.gn | 
| @@ -111,6 +111,7 @@ source_set("unit_tests") { | 
| } | 
|  | 
| source_set("eg_tests") { | 
| +  configs += [ "//build/config/compiler:enable_arc" ] | 
| testonly = true | 
| sources = [ | 
| "signin_interaction_controller_egtest.mm", | 
|  |