[Sync] Fix namespace for sync_driver component

components/sync_driver/failed_data_types_handler.cc

 // Copyright 2014 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 "components/sync_driver/data_type_manager.h"
 #include "components/sync_driver/failed_data_types_handler.h"
 
-using browser_sync::DataTypeManager;
-
-namespace browser_sync {
+namespace sync_driver {
 
 namespace {
 
 syncer::ModelTypeSet GetTypesFromErrorMap(
     const FailedDataTypesHandler::TypeErrorMap& errors) {
   syncer::ModelTypeSet result;
   for (FailedDataTypesHandler::TypeErrorMap::const_iterator it = errors.begin();
        it != errors.end(); ++it) {
     DCHECK(!result.Has(it->first));
     result.Put(it->first);
@@ skipping 110 matching lines @@
 }
 
 bool FailedDataTypesHandler::AnyFailedDataType() const {
   // Note: persistence errors are not failed types. They just trigger automatic
   // unapply + getupdates, at which point they are associated like normal.
   return !unrecoverable_errors_.empty() ||
          !data_type_errors_.empty() ||
          !crypto_errors_.empty();
 }
 
-}  // namespace browser_sync
+}  // namespace sync_driver