Introduce LaunchParams struct for opening chrome apps.

chrome/browser/extensions/extension_management_api.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_management_api.h"
 
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 344 matching lines @@
                                                      extension_id);
     return false;
   }
 
   // Look at prefs to find the right launch container.
   // |default_pref_value| is set to LAUNCH_REGULAR so that if
   // the user has not set a preference, we open the app in a tab.
   extension_misc::LaunchContainer launch_container =
       service()->extension_prefs()->GetLaunchContainer(
           extension, extensions::ExtensionPrefs::LAUNCH_DEFAULT);
-  application_launch::OpenApplication(profile(), extension, launch_container,
-                                      GURL(), NEW_FOREGROUND_TAB, NULL);
+  application_launch::OpenApplication(application_launch::LaunchParams(
+          profile(), extension, launch_container, NEW_FOREGROUND_TAB));
 #if !defined(OS_ANDROID)
   AppLauncherHandler::RecordAppLaunchType(
       extension_misc::APP_LAUNCH_EXTENSION_API);
 #endif
 
   return true;
 }
 
 SetEnabledFunction::SetEnabledFunction() {
 }
@@ skipping 208 matching lines @@
     ExtensionService* service = profile->GetExtensionService();
     args.Append(CreateExtensionInfo(*extension, service));
   }
 
   std::string args_json;
   base::JSONWriter::Write(&args, &args_json);
 
   profile->GetExtensionEventRouter()->DispatchEventToRenderers(
       event_name, args_json, NULL, GURL(), extensions::EventFilteringInfo());
 }