Support Sync following Gaia OAuth authentication

chrome/browser/sync/util/oauth.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/sync/util/oauth.h"
+
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/common/net/gaia/gaia_constants.h"
+
+namespace browser_sync {
+
+bool IsUsingOAuth() {
+  return CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableSyncOAuth);
+}
+
+const char* SyncServiceName() {
+  return IsUsingOAuth() ?
+      GaiaConstants::kSyncServiceOAuth :
+      GaiaConstants::kSyncService;
+}
+
+}  // namespace browser_sync