Move storage-related files from webkit/ to new top-level directory storage/

webkit/browser/fileapi/quota/open_file_handle.h

-// Copyright 2013 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_OPEN_FILE_HANDLE_H_
-#define WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_H_
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "webkit/browser/webkit_storage_browser_export.h"
-
-namespace base {
-class FilePath;
-}
-
-namespace fileapi {
-
-class QuotaReservation;
-class OpenFileHandleContext;
-class QuotaReservationBuffer;
-
-// Represents an open file like a file descriptor.
-// This should be alive while a consumer keeps a file opened and should be
-// deleted when the plugin closes the file.
-class WEBKIT_STORAGE_BROWSER_EXPORT OpenFileHandle {
- public:
-  ~OpenFileHandle();
-
-  // Updates cached file size and consumes quota for that.
-  // Both this and AddAppendModeWriteAmount should be called for each modified
-  // file before calling QuotaReservation::RefreshQuota and before closing the
-  // file.
-  void UpdateMaxWrittenOffset(int64 offset);
-
-  // Notifies that |amount| of data is written to the file in append mode, and
-  // consumes quota for that.
-  // Both this and UpdateMaxWrittenOffset should be called for each modified
-  // file before calling QuotaReservation::RefreshQuota and before closing the
-  // file.
-  void AddAppendModeWriteAmount(int64 amount);
-
-  // Returns the estimated file size for the quota consumption calculation.
-  // The client must consume its reserved quota when it writes data to the file
-  // beyond the estimated file size.
-  // The estimated file size is greater than or equal to actual file size after
-  // all clients report their file usage,  and is monotonically increasing over
-  // OpenFileHandle object life cycle, so that client may cache the value.
-  int64 GetEstimatedFileSize() const;
-
-  int64 GetMaxWrittenOffset() const;
-  const base::FilePath& platform_path() const;
-
- private:
-  friend class QuotaReservationBuffer;
-
-  OpenFileHandle(QuotaReservation* reservation,
-                 OpenFileHandleContext* context);
-
-  scoped_refptr<QuotaReservation> reservation_;
-  scoped_refptr<OpenFileHandleContext> context_;
-
-  base::SequenceChecker sequence_checker_;
-
-  DISALLOW_COPY_AND_ASSIGN(OpenFileHandle);
-};
-
-}  // namespace fileapi
-
-#endif  // WEBKIT_BROWSER_FILEAPI_QUOTA_OPEN_FILE_HANDLE_H_