Move more browser-specific webkit/fileapi code to webkit/browser/fileapi

webkit/fileapi/file_observers.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_FILEAPI_FILE_OBSERVERS_H_
-#define WEBKIT_FILEAPI_FILE_OBSERVERS_H_
-
-#include "base/basictypes.h"
-#include "webkit/storage/webkit_storage_export.h"
-
-// TODO(kinuko): Split this file into per-observer multiple files.
-
-namespace fileapi {
-
-class FileSystemURL;
-
-// An abstract interface to observe update operations.
-//
-// OnStartUpdate and OnEndUpdate are called once for each target url
-// before and after following operations regardless of whether the operation
-// is made recursively or not (i.e. StartUpdate() will be called only once
-// for destination url regardless of whether it is recursive copy or not):
-//  CreateFile(), CreateDirectory(),
-//  Copy() (destination only),
-//  Move() (both for source and destination),
-//  Remove(), Write(), Truncate(), TouchFile()
-//
-// OnUpdate() is called each time the |url| is updated but works only for
-// sandboxed files (where usage is tracked).
-class WEBKIT_STORAGE_EXPORT FileUpdateObserver {
- public:
-  FileUpdateObserver() {}
-  virtual ~FileUpdateObserver() {}
-
-  virtual void OnStartUpdate(const FileSystemURL& url) = 0;
-  virtual void OnUpdate(const FileSystemURL& url, int64 delta) = 0;
-  virtual void OnEndUpdate(const FileSystemURL& url) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FileUpdateObserver);
-};
-
-// An abstract interface to observe file access.
-// OnAccess is called whenever an operation reads file contents or metadata.
-// (It is called only once per operation regardless of whether the operation
-// is recursive or not)
-class WEBKIT_STORAGE_EXPORT FileAccessObserver {
- public:
-  FileAccessObserver() {}
-  virtual ~FileAccessObserver() {}
-
-  virtual void OnAccess(const FileSystemURL& url) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FileAccessObserver);
-};
-
-// An abstract interface to observe file changes.
-// Each method of this class is called once per file/directory is created,
-// removed or modified.  For recursive operations each method is called for
-// each subdirectory/subfile.  Currently ChangeObserver is only supported
-// by the local sandbox file system.
-class WEBKIT_STORAGE_EXPORT FileChangeObserver {
- public:
-  FileChangeObserver() {}
-  virtual ~FileChangeObserver() {}
-
-  virtual void OnCreateFile(const FileSystemURL& url) = 0;
-  virtual void OnCreateFileFrom(const FileSystemURL& url,
-                                const FileSystemURL& src) = 0;
-  virtual void OnRemoveFile(const FileSystemURL& url) = 0;
-  virtual void OnModifyFile(const FileSystemURL& url) = 0;
-
-  virtual void OnCreateDirectory(const FileSystemURL& url) = 0;
-  virtual void OnRemoveDirectory(const FileSystemURL& url) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(FileChangeObserver);
-};
-
-}  // namespace fileapi
-
-#endif  // WEBKIT_FILEAPI_FILE_OBSERVERS_H_