| Index: third_party/WebKit/LayoutTests/imported/wpt/custom-elements/custom-elements-registry/define.html | 
| diff --git a/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/custom-elements-registry/define.html b/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/custom-elements-registry/define.html | 
| index d0d65820c9a25d315e702c3218cd66fc095912bd..670c963001b0b560917e35d1f6e41e115678704c 100644 | 
| --- a/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/custom-elements-registry/define.html | 
| +++ b/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/custom-elements-registry/define.html | 
| @@ -164,6 +164,7 @@ | 
| test(() => { | 
| class C { | 
| static get observedAttributes() { throw_rethrown_error(); } | 
| +      attributeChangedCallback() {} | 
| } | 
| assert_rethrown(() => { | 
| customElements.define('test-define-observedattributes-rethrow', C); | 
|  |