Migrate webkit/browser/ to storage/browser/

webkit/browser/fileapi/quota/quota_reservation_manager.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2014 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_BROWSER_FILEAPI_QUOTA_QUOTA_RESERVATION_MANAGER_H_
-#define WEBKIT_BROWSER_FILEAPI_QUOTA_QUOTA_RESERVATION_MANAGER_H_
-
-#include <map>
-#include <utility>
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/files/file.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "url/gurl.h"
-#include "webkit/browser/storage_browser_export.h"
-#include "webkit/common/fileapi/file_system_types.h"
-
-namespace content {
-class QuotaReservationManagerTest;
-}
-
-namespace storage {
-
-class QuotaReservation;
-class QuotaReservationBuffer;
-class OpenFileHandle;
-class OpenFileHandleContext;
-
-class STORAGE_EXPORT QuotaReservationManager {
- public:
-  // Callback for ReserveQuota. When this callback returns false, ReserveQuota
-  // operation should be reverted.
-  typedef base::Callback<bool(base::File::Error error, int64 delta)>
-      ReserveQuotaCallback;
-
-  // An abstraction of backing quota system.
-  class STORAGE_EXPORT QuotaBackend {
-   public:
-    QuotaBackend() {}
-    virtual ~QuotaBackend() {}
-
-    // Reserves or reclaims |delta| of quota for |origin| and |type| pair.
-    // Reserved quota should be counted as usage, but it should be on-memory
-    // and be cleared by a browser restart.
-    // Invokes |callback| upon completion with an error code.
-    // |callback| should return false if it can't accept the reservation, in
-    // that case, the backend should roll back the reservation.
-    virtual void ReserveQuota(const GURL& origin,
-                              FileSystemType type,
-                              int64 delta,
-                              const ReserveQuotaCallback& callback) = 0;
-
-    // Reclaims |size| of quota for |origin| and |type|.
-    virtual void ReleaseReservedQuota(const GURL& origin,
-                                      FileSystemType type,
-                                      int64 size) = 0;
-
-    // Updates disk usage of |origin| and |type|.
-    // Invokes |callback| upon completion with an error code.
-    virtual void CommitQuotaUsage(const GURL& origin,
-                                  FileSystemType type,
-                                  int64 delta) = 0;
-
-    virtual void IncrementDirtyCount(const GURL& origin,
-                                    FileSystemType type) = 0;
-    virtual void DecrementDirtyCount(const GURL& origin,
-                                    FileSystemType type) = 0;
-
-   private:
-    DISALLOW_COPY_AND_ASSIGN(QuotaBackend);
-  };
-
-  explicit QuotaReservationManager(scoped_ptr<QuotaBackend> backend);
-  ~QuotaReservationManager();
-
-  // The entry point of the quota reservation.  Creates new reservation object
-  // for |origin| and |type|.
-  scoped_refptr<QuotaReservation> CreateReservation(
-      const GURL& origin,
-      FileSystemType type);
-
- private:
-  typedef std::map<std::pair<GURL, FileSystemType>, QuotaReservationBuffer*>
-      ReservationBufferByOriginAndType;
-
-  friend class QuotaReservation;
-  friend class QuotaReservationBuffer;
-  friend class content::QuotaReservationManagerTest;
-
-  void ReserveQuota(const GURL& origin,
-                    FileSystemType type,
-                    int64 delta,
-                    const ReserveQuotaCallback& callback);
-
-  void ReleaseReservedQuota(const GURL& origin,
-                            FileSystemType type,
-                            int64 size);
-
-  void CommitQuotaUsage(const GURL& origin,
-                        FileSystemType type,
-                        int64 delta);
-
-  void IncrementDirtyCount(const GURL& origin, FileSystemType type);
-  void DecrementDirtyCount(const GURL& origin, FileSystemType type);
-
-  scoped_refptr<QuotaReservationBuffer> GetReservationBuffer(
-      const GURL& origin,
-      FileSystemType type);
-  void ReleaseReservationBuffer(QuotaReservationBuffer* reservation_pool);
-
-  scoped_ptr<QuotaBackend> backend_;
-
-  // Not owned.  The destructor of ReservationBuffer should erase itself from
-  // |reservation_buffers_| by calling ReleaseReservationBuffer.
-  ReservationBufferByOriginAndType reservation_buffers_;
-
-  base::SequenceChecker sequence_checker_;
-  base::WeakPtrFactory<QuotaReservationManager> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(QuotaReservationManager);
-};
-
-}  // namespace storage
-
-#endif  // WEBKIT_BROWSER_FILEAPI_QUOTA_QUOTA_RESERVATION_MANAGER_H_
+#include "storage/browser/fileapi/quota/quota_reservation_manager.h"