Introduce ES6 iterator for DOM objects.

Source/core/dom/Iterator.idl

Index: Source/core/dom/Iterator.idl
diff --git a/Source/modules/geofencing/GeofencingRegion.idl b/Source/core/dom/Iterator.idl
similarity index 61%
copy from Source/modules/geofencing/GeofencingRegion.idl
copy to Source/core/dom/Iterator.idl
index 4e22058d98b22fb2f0a7d196263ea4b9a458feab..f647be54b57bde8a1fa454231fcd279db23848a7 100644
--- a/Source/modules/geofencing/GeofencingRegion.idl
+++ b/Source/core/dom/Iterator.idl
@@ -3,9 +3,8 @@
 // found in the LICENSE file.
 
 [
-    RuntimeEnabled=Geofencing,
-    NoInterfaceObject,
     GarbageCollected,
-] interface GeofencingRegion {
-    readonly attribute DOMString id;
+    NoInterfaceObject

[arv (Not doing code reviews), 2014/08/20 14:18:38]

The iterator prototype also needs a [Symbol.iterator] method that returns this.

[arv (Not doing code reviews), 2014/08/20 14:18:38]

The iterator prototype also needs a [Symbol.iterator] method that returns this.

[yhirano, 2014/08/21 11:55:27]

Done.

+] interface Iterator {
+    [CallWith=ScriptState, RaisesException] any next(optional any value);
 };