| Index: content/renderer/BUILD.gn | 
| diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn | 
| index a71ae45e33e255a08518a0ef8f7035e46b55633f..289ef5cdf75129ddc116471ab35d7e19b02fde78 100644 | 
| --- a/content/renderer/BUILD.gn | 
| +++ b/content/renderer/BUILD.gn | 
| @@ -293,6 +293,8 @@ target(link_target_type, "renderer") { | 
| "presentation/presentation_connection_proxy.h", | 
| "presentation/presentation_dispatcher.cc", | 
| "presentation/presentation_dispatcher.h", | 
| +    "previews_state_helper.cc", | 
| +    "previews_state_helper.h", | 
| "push_messaging/push_messaging_client.cc", | 
| "push_messaging/push_messaging_client.h", | 
| "render_frame_impl.cc", | 
|  |