Revert 71485 - Remove wstring from TemplateURL and friends....

chrome/browser/search_engines/template_url_fetcher.h

Index: chrome/browser/search_engines/template_url_fetcher.h
===================================================================
--- chrome/browser/search_engines/template_url_fetcher.h	(revision 71499)
+++ chrome/browser/search_engines/template_url_fetcher.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2006-2008 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.
 
@@ -7,7 +7,6 @@
 #pragma once
 
 #include "base/scoped_vector.h"
-#include "base/string16.h"
 #include "gfx/native_widget_types.h"
 
 class GURL;
@@ -34,7 +33,7 @@
   // If TemplateURLFetcher is not already downloading the OSDD for osdd_url,
   // it is downloaded. If successful and the result can be parsed, a TemplateURL
   // is added to the TemplateURLModel. Takes ownership of |callbacks|.
-  void ScheduleDownload(const string16& keyword,
+  void ScheduleDownload(const std::wstring& keyword,
                         const GURL& osdd_url,
                         const GURL& favicon_url,
                         TemplateURLFetcherCallbacks* callbacks,