Support a runtime flag for navigator content utils feature

Source/web/WebRuntimeFeatures.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 359 matching lines @@
 void WebRuntimeFeatures::enableHTMLImports(bool enable)
 {
     RuntimeEnabledFeatures::setHTMLImportsEnabled(enable);
 }
 
 bool WebRuntimeFeatures::isHTMLImportsEnabled()
 {
     return RuntimeEnabledFeatures::htmlImportsEnabled();
 }
 
+void WebRuntimeFeatures::enableNavigatorContentUtils(bool enable)
+{
+#if ENABLE(NAVIGATOR_CONTENT_UTILS)
+    RuntimeEnabledFeatures::setNavigatorContentUtilsEnabled(enable);
+#endif
+}
+
+bool WebRuntimeFeatures::isNavigatorContentUtilsEnabled()
+{
+#if ENABLE(NAVIGATOR_CONTENT_UTILS)
+    return RuntimeEnabledFeatures::navigatorContentUtilsEnabled();
+#else
+    return false;
+#endif
+}
+
 void WebRuntimeFeatures::enableCustomElements(bool enable)
 {
     RuntimeEnabledFeatures::setCustomElementsEnabled(enable);
 }
 
 void WebRuntimeFeatures::enableOverlayScrollbars(bool enable)
 {
     RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(enable);
 }
 
 } // namespace WebKit