Keep only base/extractor.[cc|h].

core/scheduler.h

-// Copyright 2007-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-
-// TODO(omaha): consider using a waitable timer registered with the reactor. It
-// seems a lot less code than using the QueueTimer class.
-
-#ifndef OMAHA_CORE_SCHEDULER_H__
-#define OMAHA_CORE_SCHEDULER_H__
-
-#include <windows.h>
-#include <atlstr.h>
-#include "base/basictypes.h"
-#include "base/scoped_ptr.h"
-
-namespace omaha {
-
-class Core;
-class HighresTimer;
-class QueueTimer;
-
-class Scheduler {
- public:
-  explicit Scheduler(const Core& core);
-  ~Scheduler();
-
-  // Starts the scheduler.
-  HRESULT Initialize();
-
- private:
-  static void TimerCallback(QueueTimer* timer);
-  void HandleCallback(QueueTimer* timer);
-  HRESULT ScheduleUpdateTimer(int interval_ms);
-  HRESULT ScheduleCodeRedTimer(int interval_ms);
-
-  const Core& core_;
-  HANDLE timer_queue_;
-  scoped_ptr<QueueTimer> update_timer_;
-  scoped_ptr<QueueTimer> code_red_timer_;
-
-  // Measures the actual time interval between code red events for debugging
-  // purposes. The timer is started when a code red alarm is set and then,
-  // the value of the timer is read when the alarm goes off.
-  scoped_ptr<HighresTimer> cr_debug_timer_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(Scheduler);
-};
-
-}  // namespace omaha
-
-#endif  // OMAHA_CORE_SCHEDULER_H__
-