Some wstring -> string16 conversion in src/app.

app/bidi_line_iterator.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef APP_BIDI_LINE_ITERATOR_H_
 #define APP_BIDI_LINE_ITERATOR_H_
 #pragma once
 
 #include <string>
 
 #include "unicode/ubidi.h"
 
 #include "base/basictypes.h"
+#include "base/string16.h"
 
 // A simple wrapper class for the bidirectional iterator of ICU.
 // This class uses the bidirectional iterator of ICU to split a line of
 // bidirectional texts into visual runs in its display order.
 class BiDiLineIterator {
  public:
   BiDiLineIterator() : bidi_(NULL) { }
   ~BiDiLineIterator();
 
   // Initializes the bidirectional iterator with the specified text.  Returns
   // whether initialization succeeded.
-  UBool Open(const std::wstring& text, bool right_to_left, bool url);
+  UBool Open(const string16& text, bool right_to_left, bool url);
 
   // Returns the number of visual runs in the text, or zero on error.
   int CountRuns();
 
   // Gets the logical offset, length, and direction of the specified visual run.
   UBiDiDirection GetVisualRun(int index, int* start, int* length);
 
   // Given a start position, figure out where the run ends (and the BiDiLevel).
   void GetLogicalRun(int start, int* end, UBiDiLevel* level);
 
  private:
   UBiDi* bidi_;
 
   DISALLOW_COPY_AND_ASSIGN(BiDiLineIterator);
 };
 
 #endif  // APP_BIDI_LINE_ITERATOR_H_