Add a user id parameter to connections

components/filesystem/file_system_app.cc

 // Copyright 2015 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.
 
 #include "components/filesystem/file_system_app.h"
 
 #include "mojo/shell/public/cpp/connection.h"
 #include "mojo/shell/public/cpp/shell.h"
 
 namespace filesystem {
 
 FileSystemApp::FileSystemApp()
     : shell_(nullptr), lock_table_(new LockTable) {}
 
 FileSystemApp::~FileSystemApp() {}
 
 void FileSystemApp::Initialize(mojo::Shell* shell, const std::string& url,
-                               uint32_t id) {
+                               uint32_t id, uint32_t user_id) {
   shell_ = shell;
   tracing_.Initialize(shell, url);
 }
 
 bool FileSystemApp::AcceptConnection(mojo::Connection* connection) {
   connection->AddInterface<FileSystem>(this);
   return true;
 }
 
 // |InterfaceFactory<Files>| implementation:
 void FileSystemApp::Create(mojo::Connection* connection,
                            mojo::InterfaceRequest<FileSystem> request) {
   new FileSystemImpl(connection, std::move(request), lock_table_.get());
 }
 
 }  // namespace filesystem