| Index: third_party/WebKit/public/BUILD.gn | 
| diff --git a/third_party/WebKit/public/BUILD.gn b/third_party/WebKit/public/BUILD.gn | 
| index 9c6ac27ee8d67ae95d22c342284633e66bd2cae9..7ca5c7b29b80ad0c3edb97a6578f40b3349be872 100644 | 
| --- a/third_party/WebKit/public/BUILD.gn | 
| +++ b/third_party/WebKit/public/BUILD.gn | 
| @@ -318,6 +318,7 @@ source_set("blink_headers") { | 
| "platform/WebRenderingStats.h", | 
| "platform/WebRuntimeFeatures.h", | 
| "platform/WebScreenInfo.h", | 
| +    "platform/WebScrollBoundaryBehavior.h", | 
| "platform/WebScrollbar.h", | 
| "platform/WebScrollbarBehavior.h", | 
| "platform/WebScrollbarButtonsPlacement.h", | 
|  |