Deleted OS_WIN and all Windows specific files from base.

base/synchronization/waitable_event_watcher_win.cc

-// Copyright (c) 2011 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/synchronization/waitable_event_watcher.h"
-
-#include "base/compiler_specific.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/win/object_watcher.h"
-
-namespace base {
-
-WaitableEventWatcher::WaitableEventWatcher()
-    : event_(NULL) {
-}
-
-WaitableEventWatcher::~WaitableEventWatcher() {
-}
-
-bool WaitableEventWatcher::StartWatching(
-    WaitableEvent* event,
-    const EventCallback& callback) {
-  callback_ = callback;
-  event_ = event;
-  return watcher_.StartWatching(event->handle(), this);
-}
-
-void WaitableEventWatcher::StopWatching() {
-  callback_.Reset();
-  event_ = NULL;
-  watcher_.StopWatching();
-}
-
-WaitableEvent* WaitableEventWatcher::GetWatchedEvent() {
-  return event_;
-}
-
-void WaitableEventWatcher::OnObjectSignaled(HANDLE h) {
-  WaitableEvent* event = event_;
-  EventCallback callback = callback_;
-  event_ = NULL;
-  callback_.Reset();
-  DCHECK(event);
-
-  callback.Run(event);
-}
-
-}  // namespace base