Switch URL and URLUtils interfaces over to use ScalarValueString.

Source/core/dom/URLUtils.idl

 /*
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 // http://url.spec.whatwg.org/#urlutils
 
 [
     NoInterfaceObject, // Always used on target of 'implements'
 ] interface URLUtils {
     // FIXME: should be stringifier: http://crbug.com/306606
-    // stringifier attribute DOMString href;
-    [PerWorldBindings, LogActivity=SetterOnly, LogPreviousValue] attribute DOMString href;
-    [NotEnumerable, ImplementedAs=href] DOMString toString();
-    readonly attribute DOMString origin;
+    // stringifier attribute ScalarValueString href;
+    [PerWorldBindings, LogActivity=SetterOnly, LogPreviousValue] attribute ScalarValueString href;
+    [NotEnumerable, ImplementedAs=href] ScalarValueString toString();
+    readonly attribute ScalarValueString origin;
 
-    attribute DOMString protocol;
-    attribute DOMString username;
-    attribute DOMString password;
-    attribute DOMString host;
-    attribute DOMString hostname;
-    attribute DOMString port;
-    attribute DOMString pathname;
-    attribute DOMString search;
+    attribute ScalarValueString protocol;
+    attribute ScalarValueString username;
+    attribute ScalarValueString password;
+    attribute ScalarValueString host;
+    attribute ScalarValueString hostname;
+    attribute ScalarValueString port;
+    attribute ScalarValueString pathname;
+    attribute ScalarValueString search;
     // Not yet implemented.
     // attribute URLSearchParams searchParams;
-    attribute DOMString hash;
+    attribute ScalarValueString hash;
 };