Remove old cloud policy code.

chrome/browser/policy/delayed_work_scheduler.h

-// 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 CHROME_BROWSER_POLICY_DELAYED_WORK_SCHEDULER_H_
-#define CHROME_BROWSER_POLICY_DELAYED_WORK_SCHEDULER_H_
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/timer.h"
-
-namespace policy {
-
-// A mockable class for scheduling and cancelling a delayed task.
-// This is only a thin wrapper around base::OneShotTimer.
-// This class is not thread-safe: all its methods should be called on the same
-// thread, and the callback will happen on that same thread.
-class DelayedWorkScheduler {
- public:
-  DelayedWorkScheduler();
-  virtual ~DelayedWorkScheduler();
-
-  // Cancels the delayed work task.
-  virtual void CancelDelayedWork();
-
-  // Posts a new delayed task.
-  virtual void PostDelayedWork(const base::Closure& callback, int64 delay);
-
- private:
-  base::OneShotTimer<DelayedWorkScheduler> timer_;
-  base::Closure callback_;
-
-  void DoDelayedWork();
-
-  DISALLOW_COPY_AND_ASSIGN(DelayedWorkScheduler);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_DELAYED_WORK_SCHEDULER_H_