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

chrome_frame/external_tab.cc

 // 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.
 
 #include "chrome_frame/external_tab.h"
 #include "base/lazy_instance.h"
 #include "base/tracked.h"
 #include "base/task.h"
-#include "base/waitable_event.h"
+#include "base/synchronization/waitable_event.h"
 #include "chrome/common/automation_messages.h"
 #include "chrome_frame/chrome_frame_delegate.h"
 #include "chrome_frame/utils.h"
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(ExternalTabProxy);
 DISABLE_RUNNABLE_METHOD_REFCOUNT(UIDelegate);
 
 namespace {
   static base::LazyInstance<ChromeProxyFactory> g_proxy_factory(
       base::LINKER_INITIALIZED);
@@ skipping 350 matching lines @@
 }
 
 void ExternalTabProxy::OnTabClosed() {
   // TODO(stoyan):
 }
 
 void ExternalTabProxy::OnAttachTab(
     const AttachExternalTabParams& attach_params) {
   // TODO(stoyan):
 }