Move CancellationFlag and WaitableEvent to the synchronization subdirectory....

ipc/ipc_sync_channel.h

 // Copyright (c) 2010 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 IPC_IPC_SYNC_SENDER_H__
 #define IPC_IPC_SYNC_SENDER_H__
 #pragma once
 
 #include <string>
 #include <deque>
 
 #include "base/basictypes.h"
 #include "base/lock.h"
 #include "base/ref_counted.h"
-#include "base/waitable_event_watcher.h"
+#include "base/synchronization/waitable_event_watcher.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_sync_message.h"
 
 namespace base {
 class WaitableEvent;
 };
 
 namespace IPC {
 
@@ skipping 122 matching lines @@
 
   // Used to signal events between the IPC and listener threads.
   base::WaitableEventWatcher dispatch_watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncChannel);
 };
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_SYNC_SENDER_H__