Remove wstring from autocomplete.

chrome/browser/autocomplete/autocomplete_popup_view_gtk.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 CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_VIEW_GTK_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_VIEW_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <map>
@@ skipping 35 matching lines @@
   // Overridden from NotificationObserver:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
  private:
   // Be friendly for unit tests.
   friend class AutocompletePopupViewGtkTest;
   static void SetupLayoutForMatch(
       PangoLayout* layout,
-      const std::wstring& text,
+      const string16& text,
       const AutocompleteMatch::ACMatchClassifications& classifications,
       const GdkColor* base_color,
       const GdkColor* dim_color,
       const GdkColor* url_color,
       const std::string& prefix_text);
 
   void Show(size_t num_results);
   void Hide();
 
   // Restack the popup window directly above the browser's toplevel window.
@@ skipping 76 matching lines @@
   // erroneously ignore the next drag.
   bool ignore_mouse_drag_;
 
   // Whether our popup is currently open / shown, or closed / hidden.
   bool opened_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompletePopupViewGtk);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_VIEW_GTK_H_