Move base to DEPS

base/at_exit.h

-// 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.
-
-#ifndef BASE_AT_EXIT_H_
-#define BASE_AT_EXIT_H_
-
-#include <stack>
-
-#include "base/base_export.h"
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/synchronization/lock.h"
-
-namespace base {
-
-// This class provides a facility similar to the CRT atexit(), except that
-// we control when the callbacks are executed. Under Windows for a DLL they
-// happen at a really bad time and under the loader lock. This facility is
-// mostly used by base::Singleton.
-//
-// The usage is simple. Early in the main() or WinMain() scope create an
-// AtExitManager object on the stack:
-// int main(...) {
-//    base::AtExitManager exit_manager;
-//
-// }
-// When the exit_manager object goes out of scope, all the registered
-// callbacks and singleton destructors will be called.
-
-class BASE_EXPORT AtExitManager {
- public:
-  typedef void (*AtExitCallbackType)(void*);
-
-  AtExitManager();
-
-  // The dtor calls all the registered callbacks. Do not try to register more
-  // callbacks after this point.
-  ~AtExitManager();
-
-  // Registers the specified function to be called at exit. The prototype of
-  // the callback function is void func(void*).
-  static void RegisterCallback(AtExitCallbackType func, void* param);
-
-  // Registers the specified task to be called at exit.
-  static void RegisterTask(base::Closure task);
-
-  // Calls the functions registered with RegisterCallback in LIFO order. It
-  // is possible to register new callbacks after calling this function.
-  static void ProcessCallbacksNow();
-
- protected:
-  // This constructor will allow this instance of AtExitManager to be created
-  // even if one already exists.  This should only be used for testing!
-  // AtExitManagers are kept on a global stack, and it will be removed during
-  // destruction.  This allows you to shadow another AtExitManager.
-  explicit AtExitManager(bool shadow);
-
- private:
-  base::Lock lock_;
-  std::stack<base::Closure> stack_;
-  AtExitManager* next_manager_;  // Stack of managers to allow shadowing.
-
-  DISALLOW_COPY_AND_ASSIGN(AtExitManager);
-};
-
-#if defined(UNIT_TEST)
-class ShadowingAtExitManager : public AtExitManager {
- public:
-  ShadowingAtExitManager() : AtExitManager(true) {}
-};
-#endif  // defined(UNIT_TEST)
-
-}  // namespace base
-
-#endif  // BASE_AT_EXIT_H_