[Sync] Change std::wstring to string16 in SyncSetupFlowHandler.

chrome/browser/ui/webui/sync_setup_handler.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/ui/webui/sync_setup_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
@@ skipping 464 matching lines @@
   web_ui_->CallJavascriptFunction(
       "SyncSetupOverlay.showSyncSetupPage", page, args);
 }
 
 void SyncSetupHandler::ShowSettingUp() {
   StringValue page("settingUp");
   web_ui_->CallJavascriptFunction(
       "SyncSetupOverlay.showSyncSetupPage", page);
 }
 
-void SyncSetupHandler::ShowSetupDone(const std::wstring& user) {
+void SyncSetupHandler::ShowSetupDone(const string16& user) {
   StringValue page("done");
   web_ui_->CallJavascriptFunction(
       "SyncSetupOverlay.showSyncSetupPage", page);
 
   // Suppress the sync promo once the user signs into sync. This way the user
   // doesn't see the sync promo even if they sign out of sync later on.
   SyncPromoUI::SetUserSkippedSyncPromo(Profile::FromWebUI(web_ui_));
 
   Profile* profile = Profile::FromWebUI(web_ui_);
   ProfileSyncService* service = profile->GetProfileSyncService();
@@ skipping 248 matching lines @@
 }
 
 void SyncSetupHandler::ShowLoginErrorMessage(const string16& error_message) {
   DictionaryValue args;
   Profile* profile = Profile::FromWebUI(web_ui_);
   ProfileSyncService* service = profile->GetProfileSyncService();
   SyncSetupFlow::GetArgsForGaiaLogin(service, &args);
   args.SetString("error_message", error_message);
   ShowGaiaLogin(args);
 }