SyncFS: Introduce SyncFileSystemBackend

webkit/browser/fileapi/isolated_file_system_backend.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_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
 #define WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "webkit/browser/fileapi/file_system_backend.h"
 
 namespace fileapi {
 
 class AsyncFileUtilAdapter;
 
 class IsolatedFileSystemBackend : public FileSystemBackend {
  public:
   IsolatedFileSystemBackend();
   virtual ~IsolatedFileSystemBackend();
 
   // FileSystemBackend implementation.
   virtual bool CanHandleType(FileSystemType type) const OVERRIDE;
+  virtual void Initialize(const FileSystemContext* context) OVERRIDE;
   virtual void InitializeFileSystem(
       const GURL& origin_url,
       FileSystemType type,
       OpenFileSystemMode mode,
       FileSystemContext* context,
       const InitializeFileSystemCallback& callback) OVERRIDE;
   virtual FileSystemFileUtil* GetFileUtil(FileSystemType type) OVERRIDE;
   virtual AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) OVERRIDE;
   virtual CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
       FileSystemType type,
@@ skipping 15 matching lines @@
 
  private:
   scoped_ptr<AsyncFileUtilAdapter> isolated_file_util_;
   scoped_ptr<AsyncFileUtilAdapter> dragged_file_util_;
   scoped_ptr<AsyncFileUtilAdapter> transient_file_util_;
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_ISOLATED_FILE_SYSTEM_BACKEND_H_