Introduce LaunchParams struct for opening chrome apps.

chrome/browser/ui/panels/panel_app_browsertest.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 "base/command_line.h"
 #include "base/file_path.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 34 matching lines @@
     EXPECT_TRUE(LoadExtension(test_data_dir_.AppendASCII(name)));
 
     ExtensionService* service = browser()->profile()->GetExtensionService();
     const extensions::Extension* extension = service->GetExtensionById(
         last_loaded_extension_id_, false);
     EXPECT_TRUE(extension);
 
     PanelManager* manager = PanelManager::GetInstance();
     int panel_count = manager->num_panels();
 
-    application_launch::OpenApplication(
-        browser()->profile(),
-        extension,
-        // Overriding manifest to open in a panel.
-        extension_misc::LAUNCH_PANEL,
-        GURL(),
-        NEW_WINDOW,
-        NULL);
+    // Overriding manifest to launch in a panel.
+    application_launch::OpenApplication(application_launch::LaunchParams(
+            browser()->profile(), extension, extension_misc::LAUNCH_PANEL,
+            NEW_WINDOW));
 
     // Now we have a new browser instance.
     EXPECT_EQ(panel_count + 1, manager->num_panels());
   }
 
   void ClosePanelAndWait(Panel* panel) {
     // Closing a panel window may involve several async tasks. Need to use
     // message pump and wait for the notification.
     int panel_count = PanelManager::GetInstance()->num_panels();
     ui_test_utils::WindowedNotificationObserver signal(
@@ skipping 23 matching lines @@
   EXPECT_EQ(1, panel_manager->num_panels());
 
   Panel* panel = panel_manager->panels()[0];
   ClosePanelAndWait(panel);
 
   EXPECT_EQ(0, panel_manager->num_panels());
   EXPECT_EQ(1u, BrowserList::size());
 }
 
 #endif  // OS_MACOSX