Refactor FileSystemOperation to take callback for each method.

chrome/browser/extensions/extension_file_browser_private_api.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 CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_BROWSER_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_BROWSER_PRIVATE_API_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/platform_file.h"
 #include "chrome/browser/chromeos/gdata/gdata.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "googleurl/src/url_util.h"
-#include "webkit/fileapi/file_system_callback_dispatcher.h"
 
 class GURL;
 
 // Implements the chrome.fileBrowserPrivate.requestLocalFileSystem method.
 class RequestLocalFileSystemFunction : public AsyncExtensionFunction {
  protected:
   // AsyncExtensionFunction overrides.
   virtual bool RunImpl() OVERRIDE;
 
  private:
@@ skipping 325 matching lines @@
   virtual ~FileDialogStringsFunction() {}
 
   // SyncExtensionFunction overrides.
   virtual bool RunImpl() OVERRIDE;
 
  private:
   DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.getStrings");
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_BROWSER_PRIVATE_API_H_