Creating a common library for all DOM types.

sdk/lib/html/html_common/collections.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-part of html;
+part of html_common;
 
 /**
  * The [Collections] class implements static methods useful when
  * writing a class that implements [Collection] and the [iterator]
  * method.
  */
-class _Collections {
+class Collections {
   static bool contains(Iterable<Object> iterable, Object element) {
     for (final e in iterable) {
       if (e == element) return true;
     }
     return false;
   }
 
   static void forEach(Iterable<Object> iterable, void f(Object o)) {
     for (final e in iterable) {
       f(e);
@@ skipping 29 matching lines @@
     for (final e in source) {
       if (f(e)) destination.add(e);
     }
     return destination;
   }
 
   static bool isEmpty(Iterable<Object> iterable) {
     return !iterable.iterator().hasNext;
   }
 }