Move base to DEPS

base/synchronization/waitable_event_watcher.h

Index: base/synchronization/waitable_event_watcher.h
diff --git a/base/synchronization/waitable_event_watcher.h b/base/synchronization/waitable_event_watcher.h
deleted file mode 100644
index eb51effa49932cf250828a2ecc447f9a9c598e71..0000000000000000000000000000000000000000
--- a/base/synchronization/waitable_event_watcher.h
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2012 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 BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_
-#define BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_
-
-#include "base/base_export.h"
-#include "build/build_config.h"
-
-#if defined(OS_WIN)
-#include "base/win/object_watcher.h"
-#else
-#include "base/callback.h"
-#include "base/message_loop/message_loop.h"
-#include "base/synchronization/waitable_event.h"
-#endif
-
-namespace base {
-
-class Flag;
-class AsyncWaiter;
-class AsyncCallbackTask;
-class WaitableEvent;
-
-// This class provides a way to wait on a WaitableEvent asynchronously.
-//
-// Each instance of this object can be waiting on a single WaitableEvent. When
-// the waitable event is signaled, a callback is made in the thread of a given
-// MessageLoop. This callback can be deleted by deleting the waiter.
-//
-// Typical usage:
-//
-//   class MyClass {
-//    public:
-//     void DoStuffWhenSignaled(WaitableEvent *waitable_event) {
-//       watcher_.StartWatching(waitable_event,
-//           base::Bind(&MyClass::OnWaitableEventSignaled, this);
-//     }
-//    private:
-//     void OnWaitableEventSignaled(WaitableEvent* waitable_event) {
-//       // OK, time to do stuff!
-//     }
-//     base::WaitableEventWatcher watcher_;
-//   };
-//
-// In the above example, MyClass wants to "do stuff" when waitable_event
-// becomes signaled. WaitableEventWatcher makes this task easy. When MyClass
-// goes out of scope, the watcher_ will be destroyed, and there is no need to
-// worry about OnWaitableEventSignaled being called on a deleted MyClass
-// pointer.
-//
-// BEWARE: With automatically reset WaitableEvents, a signal may be lost if it
-// occurs just before a WaitableEventWatcher is deleted. There is currently no
-// safe way to stop watching an automatic reset WaitableEvent without possibly
-// missing a signal.
-//
-// NOTE: you /are/ allowed to delete the WaitableEvent while still waiting on
-// it with a Watcher. It will act as if the event was never signaled.
-
-class BASE_EXPORT WaitableEventWatcher
-#if defined(OS_WIN)
-    : public win::ObjectWatcher::Delegate {
-#else
-    : public MessageLoop::DestructionObserver {
-#endif
- public:
-  typedef Callback<void(WaitableEvent*)> EventCallback;
-  WaitableEventWatcher();
-  ~WaitableEventWatcher() override;
-
-  // When @event is signaled, the given callback is called on the thread of the
-  // current message loop when StartWatching is called.
-  bool StartWatching(WaitableEvent* event, const EventCallback& callback);
-
-  // Cancel the current watch. Must be called from the same thread which
-  // started the watch.
-  //
-  // Does nothing if no event is being watched, nor if the watch has completed.
-  // The callback will *not* be called for the current watch after this
-  // function returns. Since the callback runs on the same thread as this
-  // function, it cannot be called during this function either.
-  void StopWatching();
-
-  // Return the currently watched event, or NULL if no object is currently being
-  // watched.
-  WaitableEvent* GetWatchedEvent();
-
-  // Return the callback that will be invoked when the event is
-  // signaled.
-  const EventCallback& callback() const { return callback_; }
-
- private:
-#if defined(OS_WIN)
-  void OnObjectSignaled(HANDLE h) override;
-  win::ObjectWatcher watcher_;
-#else
-  // Implementation of MessageLoop::DestructionObserver
-  void WillDestroyCurrentMessageLoop() override;
-
-  MessageLoop* message_loop_;
-  scoped_refptr<Flag> cancel_flag_;
-  AsyncWaiter* waiter_;
-  base::Closure internal_callback_;
-  scoped_refptr<WaitableEvent::WaitableEventKernel> kernel_;
-#endif
-
-  WaitableEvent* event_;
-  EventCallback callback_;
-};
-
-}  // namespace base
-
-#endif  // BASE_SYNCHRONIZATION_WAITABLE_EVENT_WATCHER_H_