Add a runtime flag for navigator content utils

Source/web/WebRuntimeFeatures.cpp

Index: Source/web/WebRuntimeFeatures.cpp
diff --git a/Source/web/WebRuntimeFeatures.cpp b/Source/web/WebRuntimeFeatures.cpp
index 912ded691ea6bbe1951c902646bb0ff65cb7c567..eb374e7046068e3631e715de1569489aedf80e00 100644
--- a/Source/web/WebRuntimeFeatures.cpp
+++ b/Source/web/WebRuntimeFeatures.cpp
@@ -270,6 +270,16 @@ bool WebRuntimeFeatures::isNotificationsEnabled()
     return RuntimeEnabledFeatures::notificationsEnabled();
 }
 
+void WebRuntimeFeatures::enableNavigatorContentUtils(bool enable)
+{
+    RuntimeEnabledFeatures::setNavigatorContentUtilsEnabled(enable);
+}
+
+bool WebRuntimeFeatures::isNavigatorContentUtilsEnabled()
+{
+    return RuntimeEnabledFeatures::navigatorContentUtilsEnabled();
+}
+
 void WebRuntimeFeatures::enablePagePopup(bool enable)
 {
     RuntimeEnabledFeatures::setPagePopupEnabled(enable);