[Sync] Move //components/sync_driver to //components/sync/driver.

components/sync_driver/change_processor.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/change_processor.h"
-
-namespace sync_driver {
-
-ChangeProcessor::ChangeProcessor(syncer::DataTypeErrorHandler* error_handler)
-    : error_handler_(error_handler), share_handle_(NULL) {}
-
-ChangeProcessor::~ChangeProcessor() {
-}
-
-void ChangeProcessor::Start(syncer::UserShare* share_handle) {
-  DCHECK(!share_handle_);
-  share_handle_ = share_handle;
-  StartImpl();
-}
-
-// Not implemented by default.
-void ChangeProcessor::CommitChangesFromSyncModel() {}
-
-syncer::DataTypeErrorHandler* ChangeProcessor::error_handler() const {
-  return error_handler_;
-}
-
-syncer::UserShare* ChangeProcessor::share_handle() const {
-  return share_handle_;
-}
-
-}  // namespace sync_driver