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

base/waitable_event_watcher_win.cc

-// Copyright (c) 2006-2008 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 "base/waitable_event_watcher.h"
-
-#include "base/compiler_specific.h"
-#include "base/waitable_event.h"
-#include "base/win/object_watcher.h"
-
-namespace base {
-
-WaitableEventWatcher::ObjectWatcherHelper::ObjectWatcherHelper(
-    WaitableEventWatcher* watcher)
-    : watcher_(watcher) {
-};
-
-void WaitableEventWatcher::ObjectWatcherHelper::OnObjectSignaled(HANDLE h) {
-  watcher_->OnObjectSignaled();
-}
-
-
-WaitableEventWatcher::WaitableEventWatcher()
-    : event_(NULL),
-      ALLOW_THIS_IN_INITIALIZER_LIST(helper_(this)),
-      delegate_(NULL) {
-}
-
-WaitableEventWatcher::~WaitableEventWatcher() {
-}
-
-bool WaitableEventWatcher::StartWatching(WaitableEvent* event,
-                                         Delegate* delegate) {
-  delegate_ = delegate;
-  event_ = event;
-
-  return watcher_.StartWatching(event->handle(), &helper_);
-}
-
-void WaitableEventWatcher::StopWatching() {
-  delegate_ = NULL;
-  event_ = NULL;
-  watcher_.StopWatching();
-}
-
-WaitableEvent* WaitableEventWatcher::GetWatchedEvent() {
-  return event_;
-}
-
-void WaitableEventWatcher::OnObjectSignaled() {
-  WaitableEvent* event = event_;
-  Delegate* delegate = delegate_;
-  event_ = NULL;
-  delegate_ = NULL;
-  DCHECK(event);
-
-  delegate->OnWaitableEventSignaled(event);
-}
-
-}  // namespace base