[fsp] Group arguments for API methods and events in dictionaries.

chrome/browser/chromeos/file_system_provider/operations/operation.h

 // 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 CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPERATION_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPERATION_H_
 
 #include <string>
 
 #include "base/files/file.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
 #include "chrome/browser/chromeos/file_system_provider/request_manager.h"
 #include "webkit/browser/fileapi/async_file_util.h"
 
 namespace base {
-class ListValue;
+class DictionaryValue;
 }  // namespace base
 
 namespace extensions {
 struct Event;
 class EventRouter;
 }  // namespace extensions
 
 namespace chromeos {
 namespace file_system_provider {
 namespace operations {
@@ skipping 18 matching lines @@
   // Sets custom dispatchign event implementation for tests.
   void SetDispatchEventImplForTesting(
       const DispatchEventImplCallback& callback);
 
  protected:
   // Sends an event to the providing extension. Automatically adds the file
   // system id and the request id fields. Returns false, if the providing
   // extension does not handle the |event_name| event.
   bool SendEvent(int request_id,
                  const std::string& event_name,
-                 scoped_ptr<base::ListValue> event_args);
+                 scoped_ptr<base::DictionaryValue> options);
 
   ProvidedFileSystemInfo file_system_info_;
 
  private:
   DispatchEventImplCallback dispatch_event_impl_;
   DISALLOW_COPY_AND_ASSIGN(Operation);
 };
 
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPERATION_H_