| Index: LayoutTests/webexposed/global-interface-listing-expected.txt | 
| diff --git a/LayoutTests/webexposed/global-interface-listing-expected.txt b/LayoutTests/webexposed/global-interface-listing-expected.txt | 
| index d600c4a5b4263748bd415500ce9962c076c5c51d..469c490a8412fc6f232fc8bd00e781f07fa95099 100644 | 
| --- a/LayoutTests/webexposed/global-interface-listing-expected.txt | 
| +++ b/LayoutTests/webexposed/global-interface-listing-expected.txt | 
| @@ -3648,6 +3648,15 @@ interface PerformanceNavigation | 
| getter redirectCount | 
| getter type | 
| method constructor | 
| +interface PerformanceObserver | 
| +    method constructor | 
| +    method disconnect | 
| +    method observe | 
| +interface PerformanceObserverEntryList | 
| +    method constructor | 
| +    method getEntries | 
| +    method getEntriesByName | 
| +    method getEntriesByType | 
| interface PerformanceRenderTiming | 
| getter sourceFrame | 
| method constructor | 
|  |