Convert infobar APIs to UTF-16.

chrome/browser/extensions/theme_installed_infobar_delegate.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_EXTENSIONS_THEME_INSTALLED_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_EXTENSIONS_THEME_INSTALLED_INFOBAR_DELEGATE_H_
 #pragma once
 
 #include "chrome/browser/tab_contents/infobar_delegate.h"
 #include "chrome/common/notification_registrar.h"
 
 class Extension;
 class SkBitmap;
 class TabContents;
 
 // When a user installs a theme, we display it immediately, but provide an
 // infobar allowing them to cancel.
 class ThemeInstalledInfoBarDelegate : public ConfirmInfoBarDelegate,
                                       public NotificationObserver {
  public:
   ThemeInstalledInfoBarDelegate(TabContents* tab_contents,
                                 const Extension* new_theme,
                                 const std::string& previous_theme_id);
   virtual ~ThemeInstalledInfoBarDelegate();
   virtual void InfoBarClosed();
-  virtual std::wstring GetMessageText() const;
+  virtual string16 GetMessageText() const;
   virtual SkBitmap* GetIcon() const;
   virtual ThemeInstalledInfoBarDelegate* AsThemePreviewInfobarDelegate();
   virtual int GetButtons() const;
-  virtual std::wstring GetButtonLabel(
+  virtual string16 GetButtonLabel(
       ConfirmInfoBarDelegate::InfoBarButton button) const;
   virtual bool Cancel();
 
   // Returns true if the given theme is the same as the one associated with this
   // info bar.
   bool MatchesTheme(Extension* theme);
 
   // NotificationObserver implementation.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
@@ skipping 14 matching lines @@
   std::string previous_theme_id_;
 
   // Tab to which this info bar is associated.
   TabContents* tab_contents_;
 
   // Registers and unregisters us for notifications.
   NotificationRegistrar registrar_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_THEME_INSTALLED_INFOBAR_DELEGATE_H_