Initial commit of sync engine code to browser/sync....

chrome/browser/sync/engine/apply_updates_command.cc

+// Copyright (c) 2006-2009 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/engine/apply_updates_command.h"
+
+#include "chrome/browser/sync/engine/syncer_session.h"
+#include "chrome/browser/sync/engine/update_applicator.h"
+#include "chrome/browser/sync/syncable/directory_manager.h"
+#include "chrome/browser/sync/syncable/syncable.h"
+#include "chrome/browser/sync/util/sync_types.h"
+
+namespace browser_sync {
+
+ApplyUpdatesCommand::ApplyUpdatesCommand() {}
+ApplyUpdatesCommand::~ApplyUpdatesCommand() {}
+
+void ApplyUpdatesCommand::ModelChangingExecuteImpl(SyncerSession *session) {
+  syncable::ScopedDirLookup dir(session->dirman(), session->account_name());
+  if (!dir.good()) {
+    LOG(ERROR) << "Scoped dir lookup failed!";
+    return;
+  }
+  syncable::WriteTransaction trans(dir, syncable::SYNCER, __FILE__, __LINE__);
+  syncable::Directory::UnappliedUpdateMetaHandles handles;
+  dir->GetUnappliedUpdateMetaHandles(&trans, &handles);
+
+  UpdateApplicator applicator(session, handles.begin(), handles.end());
+  while (applicator.AttemptOneApplication(&trans)) {
+  }
+  applicator.SaveProgressIntoSessionState();
+}
+
+}  // namespace browser_sync