Move webkit/quota files to webkit/browser/quota or webkit/common/quota

webkit/quota/quota_task.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 WEBKIT_QUOTA_QUOTA_TASK_H_
-#define WEBKIT_QUOTA_QUOTA_TASK_H_
-
-#include <set>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/sequenced_task_runner_helpers.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-namespace base {
-class SingleThreadTaskRunner;
-class TaskRunner;
-}
-
-namespace quota {
-
-class QuotaTaskObserver;
-
-// A base class for quota tasks.
-// TODO(kinuko): Revise this using base::Callback.
-class QuotaTask {
- public:
-  void Start();
-
- protected:
-  explicit QuotaTask(QuotaTaskObserver* observer);
-  virtual ~QuotaTask();
-
-  // The task body.
-  virtual void Run() = 0;
-
-  // Called upon completion, on the original message loop.
-  virtual void Completed() = 0;
-
-  // Called when the task is aborted.
-  virtual void Aborted() {}
-
-  void CallCompleted();
-
-  // Call this to delete itself.
-  void DeleteSoon();
-
-  QuotaTaskObserver* observer() const { return observer_; }
-  base::SingleThreadTaskRunner* original_task_runner() const {
-    return original_task_runner_;
-  }
-
- private:
-  friend class base::DeleteHelper<QuotaTask>;
-  friend class QuotaTaskObserver;
-
-  void Abort();
-  QuotaTaskObserver* observer_;
-  scoped_refptr<base::SingleThreadTaskRunner> original_task_runner_;
-  bool delete_scheduled_;
-};
-
-class WEBKIT_STORAGE_EXPORT QuotaTaskObserver {
- protected:
-  friend class QuotaTask;
-
-  QuotaTaskObserver();
-  virtual ~QuotaTaskObserver();
-
-  void RegisterTask(QuotaTask* task);
-  void UnregisterTask(QuotaTask* task);
-
-  typedef std::set<QuotaTask*> TaskSet;
-  TaskSet running_quota_tasks_;
-};
-}
-
-#endif  // WEBKIT_QUOTA_QUOTA_TASK_H_