Make getKeys, getValues getters (keys, values).

lib/html/templates/html/impl/impl_Storage.darttemplate

 // Copyright (c) 2012, 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.
 
 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
 
   // TODO(nweiz): update this when maps support lazy iteration
-  bool containsValue(String value) => getValues().some((e) => e == value);
+  bool containsValue(String value) => values.some((e) => e == value);
 
   bool containsKey(String key) => $dom_getItem(key) != null;
 
   String operator [](String key) => $dom_getItem(key);
 
   void operator []=(String key, String value) => $dom_setItem(key, value);
 
   String putIfAbsent(String key, String ifAbsent()) {
     if (!containsKey(key)) this[key] = ifAbsent();
     return this[key];
   }
 
   String remove(String key) {
     final value = this[key];
     $dom_removeItem(key);
     return value;
   }
 
   void clear() => $dom_clear();
 
   void forEach(void f(String key, String value)) {
     for (var i = 0; true; i++) {
       final key = $dom_key(i);
       if (key == null) return;
 
       f(key, this[key]);
     }
   }
 
-  Collection<String> getKeys() {
+  Collection<String> get keys {
     final keys = [];
     forEach((k, v) => keys.add(k));
     return keys;
   }
 
-  Collection<String> getValues() {
+  Collection<String> get values {
     final values = [];
     forEach((k, v) => values.add(v));
     return values;
   }
 
   int get length => $dom_length;
 
   bool get isEmpty => $dom_key(0) == null;
 $!MEMBERS
 }