Reapply r9192 and 9194, with the change of making locale a public field.

lib/i18n/bidi_formatter.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.
 
-#library('bidi_formatter');
-
-#import('bidi_utils.dart');
-
 /**
  * Bidi stands for Bi-directional text.
- * According to http://en.wikipedia.org/wiki/Bi-directional_text:
+ * According to [Wikipedia](http://en.wikipedia.org/wiki/Bi-directional_text):
  * Bi-directional text is text containing text in both text directionalities,
  * both right-to-left (RTL) and left-to-right (LTR). It generally involves text
  * containing different types of alphabets, but may also refer to boustrophedon,
  * which is changing text directionality in each row.
  *
  * Utility class for formatting display text in a potentially
  * opposite-directionality context without garbling layout issues.
  * Mostly a very "slimmed-down" and dart-ified port of the Closure Birectional
  * formatting libary. If there is a utility in the Closure library (or ICU, or
  * elsewhere) that you would like this formatter to make available, please
@@ skipping 28 matching lines @@
  * attacks and other nasty business. This of course is always true, but the
  * escaping cannot be done after the string has already been wrapped in
  * mark-up, so the BiDi formatter also serves as a last chance and includes
  * escaping services.
  *
  * Thus, in a single call, the formatter will escape the input string as
  * specified, determine its directionality, and wrap it as necessary. It is
  * then up to the caller to insert the return value in the output.
  */
 
-#import('dart:web');
-
 class BidiFormatter {
 
   /** The direction of the surrounding text (the context). */
   TextDirection contextDirection;
 
   /**
    * Indicates if we should always wrap the formatted text in a <span<,.
    */
   bool _alwaysSpan;
 
@@ skipping 107 matching lines @@
       if (contextDirection == TextDirection.LTR) {
         return BidiUtils.LRM;
       } else {
         return BidiUtils.RLM;
       }
     } else {
       return '';
     }
   }
 }