Add base:: to string16s in chrome/.

chrome/test/base/test_browser_window.h

 // Copyright (c) 2012 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_TEST_BASE_TEST_BROWSER_WINDOW_H_
 #define CHROME_TEST_BASE_TEST_BROWSER_WINDOW_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "build/build_config.h"
@@ skipping 91 matching lines @@
   virtual void ShowUpdateChromeDialog() OVERRIDE {}
   virtual void ShowBookmarkBubble(const GURL& url,
                                   bool already_bookmarked) OVERRIDE {}
   virtual void ShowTranslateBubble(
       content::WebContents* contents,
       TranslateBubbleModel::ViewState view_state,
       TranslateErrors::Type error_type) OVERRIDE {}
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
   virtual void ShowOneClickSigninBubble(
       OneClickSigninBubbleType type,
-      const string16& email,
-      const string16& error_message,
+      const base::string16& email,
+      const base::string16& error_message,
       const StartSyncCallback& start_sync_callback) OVERRIDE {}
 #endif
   virtual bool IsDownloadShelfVisible() const OVERRIDE;
   virtual DownloadShelf* GetDownloadShelf() OVERRIDE;
   virtual void ConfirmBrowserCloseWithPendingDownloads(
       int download_count,
       Browser::DownloadClosePreventionType dialog_type,
       bool app_modal,
       const base::Callback<void(bool)>& callback) OVERRIDE {}
   virtual void UserChangedTheme() OVERRIDE {}
@@ skipping 67 matching lines @@
 };
 
 namespace chrome {
 
 // Helper that handle the lifetime of TestBrowserWindow instances.
 Browser* CreateBrowserWithTestWindowForParams(Browser::CreateParams* params);
 
 }  // namespace chrome
 
 #endif  // CHROME_TEST_BASE_TEST_BROWSER_WINDOW_H_