| Index: chrome/browser/BUILD.gn | 
| diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn | 
| index 10af18245a31f20e8b2425cfd170a593d6844cce..23e3db7b1fc7f4cc1b238bb3c5fcec9d0637e445 100644 | 
| --- a/chrome/browser/BUILD.gn | 
| +++ b/chrome/browser/BUILD.gn | 
| @@ -802,6 +802,8 @@ split_static_library("browser") { | 
| "page_load_metrics/metrics_web_contents_observer.h", | 
| "page_load_metrics/observers/aborts_page_load_metrics_observer.cc", | 
| "page_load_metrics/observers/aborts_page_load_metrics_observer.h", | 
| +    "page_load_metrics/observers/ads_page_load_metrics_observer.cc", | 
| +    "page_load_metrics/observers/ads_page_load_metrics_observer.h", | 
| "page_load_metrics/observers/amp_page_load_metrics_observer.cc", | 
| "page_load_metrics/observers/amp_page_load_metrics_observer.h", | 
| "page_load_metrics/observers/core_page_load_metrics_observer.cc", | 
|  |