| Index: services/ui/public/interfaces/BUILD.gn | 
| diff --git a/services/ui/public/interfaces/BUILD.gn b/services/ui/public/interfaces/BUILD.gn | 
| index 0b2d7bb2ec9d98efcf671e11c22f6bb35fadbbfc..dfd9be4782457a47e451e272e25465b40c9da067 100644 | 
| --- a/services/ui/public/interfaces/BUILD.gn | 
| +++ b/services/ui/public/interfaces/BUILD.gn | 
| @@ -34,6 +34,7 @@ mojom("interfaces") { | 
| ] | 
|  | 
| public_deps = [ | 
| +    ":constants", | 
| "//cc/ipc:interfaces", | 
| "//gpu/ipc/common:interfaces", | 
| "//services/ui/public/interfaces/display", | 
| @@ -46,6 +47,12 @@ mojom("interfaces") { | 
| use_new_wrapper_types = false | 
| } | 
|  | 
| +mojom("constants") { | 
| +  sources = [ | 
| +    "constants.mojom", | 
| +  ] | 
| +} | 
| + | 
| test("ui_struct_traits_unittests") { | 
| testonly = true | 
|  | 
|  |