Add an API to component_updater that asks to do an update check "now".

chrome/browser/component_updater/pnacl/pnacl_component_installer.h

 // Copyright (c) 2011 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_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
 #define CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
 
+class CommandLine;
 class ComponentUpdateService;
 class Version;
 
 namespace base {
 class DictionaryValue;
 }
 
 // Component update registration for Portable Native Client.
-void RegisterPnaclComponent(ComponentUpdateService* cus);
+void RegisterPnaclComponent(ComponentUpdateService* cus,
+                            const CommandLine& command_line);
 
 // Returns true if this browser is compatible with the given Pnacl component
 // manifest, with the version specified in the manifest in |version_out|.
 bool CheckPnaclComponentManifest(base::DictionaryValue* manifest,
                                  Version* version_out);
 
 #endif  // CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_