PlzNavigate: properly set the initiator of the navigation

content/browser/loader/resource_dispatcher_host_impl.cc

Index: content/browser/loader/resource_dispatcher_host_impl.cc
diff --git a/content/browser/loader/resource_dispatcher_host_impl.cc b/content/browser/loader/resource_dispatcher_host_impl.cc
index a0855984d17f5fd4f65acf0b6e5be3146c1a9b68..b8c4757e8426b9c0d5f84ebe7affbf8fd11019aa 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.cc
+++ b/content/browser/loader/resource_dispatcher_host_impl.cc
@@ -2193,7 +2193,7 @@ void ResourceDispatcherHostImpl::BeginNavigationRequest(
   new_request->set_method(info.common_params.method);
   new_request->set_first_party_for_cookies(
       info.first_party_for_cookies);
-  new_request->set_initiator(info.request_initiator);
+  new_request->set_initiator(info.begin_params.initiator);
   if (info.is_main_frame) {
     new_request->set_first_party_url_policy(
         net::URLRequest::UPDATE_FIRST_PARTY_URL_ON_REDIRECT);