Introduce ServiceWorkerNavigationPreload feature name

content/child/runtime_features.cc

Index: content/child/runtime_features.cc
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
index 109ab6cc51a64cb24739686bfbefeb8201a50827..15e6f8e8b7807d322a1e4404332430fd6eb664aa 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -303,6 +303,9 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
       base::FeatureList::IsEnabled(features::kWebPayments));
 #endif
 
+  if (base::FeatureList::IsEnabled(features::kServiceWorkerNavigationPreload))
+    WebRuntimeFeatures::enableServiceWorkerNavigationPreload(true);
+
   if (base::FeatureList::IsEnabled(features::kSpeculativeLaunchServiceWorker))
     WebRuntimeFeatures::enableSpeculativeLaunchServiceWorker(true);