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

chrome/browser/sync/syncable/directory_event.h

+// Copyright (c) 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.
+
+#ifndef CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_EVENT_H_
+#define CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_EVENT_H_
+
+namespace syncable {
+
+// This kind of Event is emitted when the state of a Directory object
+// changes somehow, such as the directory being opened or closed.
+// Don't confuse it with a DirectoryChangeEvent, which is what happens
+// when one or more of the Entry contents of a Directory have been updated.
+enum DirectoryEvent {
+  DIRECTORY_CLOSED,
+  DIRECTORY_DESTROYED,
+};
+
+}  // namespace syncable
+
+#endif  // CHROME_BROWSER_SYNC_SYNCABLE_DIRECTORY_EVENT_H_