Expose toString() as enumerable on some objects.

third_party/WebKit/Source/core/html/HTMLHyperlinkElementUtils.idl

Index: third_party/WebKit/Source/core/html/HTMLHyperlinkElementUtils.idl
diff --git a/third_party/WebKit/Source/core/html/HTMLHyperlinkElementUtils.idl b/third_party/WebKit/Source/core/html/HTMLHyperlinkElementUtils.idl
index f30281ef6e8223445b8e839b934e2df0a4ee72d0..554cb3ad27d5475656d91b77bfdad2a55c492b5a 100644
--- a/third_party/WebKit/Source/core/html/HTMLHyperlinkElementUtils.idl
+++ b/third_party/WebKit/Source/core/html/HTMLHyperlinkElementUtils.idl
@@ -7,15 +7,7 @@
 [
     NoInterfaceObject, // Always used on target of 'implements'
 ] interface HTMLHyperlinkElementUtils {
-    // TODO(sof): 'stringifier' entails an enumerable toString(),
-    //   http://heycam.github.io/webidl/#es-stringifier
-    // something implementations of HTMLHyperlinkElementUtils currently
-    // provide. Make them to comply with the spec (http://crbug.com/306606).
-    //
-    // Until that time, do not use 'stringifier'.
-    // stringifier attribute USVString href;
-    attribute USVString href;
-    [NotEnumerable, ImplementedAs=href] USVString toString();
+    stringifier attribute USVString href;
     readonly attribute USVString origin;
 
     attribute USVString protocol;