Implement QuotaTemporaryStorageEvictor.

webkit/quota/quota_temporary_storage_evictor.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 WEBKIT_QUOTA_QUOTA_TEMPORARY_STORAGE_EVICTOR_H_
+#define WEBKIT_QUOTA_QUOTA_TEMPORARY_STORAGE_EVICTOR_H_
+#pragma once
+
+#include "base/message_loop_proxy.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_callback_factory.h"
+#include "webkit/quota/quota_database.h"
+#include "webkit/quota/quota_manager.h"
+#include "webkit/quota/quota_task.h"
+#include "webkit/quota/quota_types.h"
+
+class GURL;
+
+namespace quota {
+
+class QuotaTemporaryStorageEvictor
+    : public base::RefCountedThreadSafe<QuotaTemporaryStorageEvictor> {
+ public:
+  // Constructed in the io_thread.

[kinuko, 2011/05/13 05:49:04]

nit: in -> on?

[Dai Mikurube (NOT FULLTIME), 2011/05/13 07:52:40]

Done.

+  QuotaTemporaryStorageEvictor(
+      QuotaManager* quota_manager,
+      QuotaDatabase* quota_database,
+      int64 delay_ms,
+      scoped_refptr<base::MessageLoopProxy> io_message_loop,
+      scoped_refptr<base::MessageLoopProxy> db_message_loop);
+  virtual ~QuotaTemporaryStorageEvictor();
+
+  // It can be called from any thread.
+  // It posts a task to the db_thread internally.
+  void Start();
+
+  // It must be called on the io_thread.
+  void OnQuotaManagerDestroyedOnIOThread();
+
+ private:
+  void Evict();
+
+  // It must be called-back from the io_thread.
+  void OnDeletionCompletedOnIOThread(QuotaStatusCode status);
+
+  // It must be called on the io_thread.
+  void CallDeleteOriginOnIOThread(const GURL& origin);
+
+  // This pointer must be accessed in the io_thread.
+  QuotaManager* quota_manager_;
+
+  QuotaDatabase* quota_database_;
+  int delay_ms_;
+  scoped_refptr<base::MessageLoopProxy> io_message_loop_;
+  scoped_refptr<base::MessageLoopProxy> db_message_loop_;
+
+  base::ScopedCallbackFactory<QuotaTemporaryStorageEvictor> callback_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(QuotaTemporaryStorageEvictor);
+};
+
+}  // namespace quota
+
+#endif  // WEBKIT_QUOTA_QUOTA_TEMPORARY_STORAGE_EVICTOR_H_