Make String.charCodes a getter.

samples/logo/logo.dart

 // 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.
 
 import 'dart:html';
 import 'dart:math' as Math;
 
 class Color {
   int hue;
   double saturation;
@@ skipping 34 matching lines @@
     return new Color((h.round() % 360).toInt(), s, l);
   }
 
   factory Color.hex(String hex) => new Color.rgb(
       _parseHex(hex.substring(1, 3))/255,
       _parseHex(hex.substring(3, 5))/255,
       _parseHex(hex.substring(5, 7))/255);
 
   // This should be in the core library. Issue #233
   static int _parseHex(String hex) {
-    final codes = hex.charCodes();
+    final codes = hex.charCodes;
     var number = 0;
     for (var i = 0; i < codes.length; i++) {
       final code = codes[i];
       var digit;
       if (code >= 48 && code <= 57) { // 0-9
         digit = code - 48;
       } else if (code >= 97 && code <= 102) { // a-f
         digit = code - 97 + 10;
       } else {
         throw "Invalid hex string: '$hex'";
@@ skipping 123 matching lines @@
 
   document.query("input[name=invert]").on.change.add((Event e) {
     InputElement invert = e.target;
     if (invert.checked) {
       logo.classes = ['inverse'];
     } else {
       logo.classes = [];
     }
   });
 }