| Index: third_party/WebKit/Source/core/core_idl_files.gni | 
| diff --git a/third_party/WebKit/Source/core/core_idl_files.gni b/third_party/WebKit/Source/core/core_idl_files.gni | 
| index c4021ed5d4e0659332099beb8d32e83976bcc8b0..ce51527d4ff3c8b2fbb7e2039b7a2e84f55e82a6 100644 | 
| --- a/third_party/WebKit/Source/core/core_idl_files.gni | 
| +++ b/third_party/WebKit/Source/core/core_idl_files.gni | 
| @@ -400,6 +400,7 @@ core_idl_files = get_path_info([ | 
| "timing/PerformanceMark.idl", | 
| "timing/PerformanceMeasure.idl", | 
| "timing/PerformanceNavigation.idl", | 
| +                                 "timing/PerformanceNavigationTiming.idl", | 
| "timing/PerformanceObserver.idl", | 
| "timing/PerformanceObserverEntryList.idl", | 
| "timing/PerformanceResourceTiming.idl", | 
|  |