Introduce LaunchParams struct for opening chrome apps.

chrome/browser/extensions/extension_apitest.cc

Index: chrome/browser/extensions/extension_apitest.cc
diff --git a/chrome/browser/extensions/extension_apitest.cc b/chrome/browser/extensions/extension_apitest.cc
index 26241e796fd32ab588e1efda73693873c1df971e..7704b3826f0eb2b9caf95a7a8cd190fa7c6f0a58 100644
--- a/chrome/browser/extensions/extension_apitest.cc
+++ b/chrome/browser/extensions/extension_apitest.cc
@@ -210,14 +210,11 @@ bool ExtensionApiTest::RunExtensionTestImpl(const char* extension_name,
       ui_test_utils::NavigateToURL(browser(), url);
 
   } else if (launch_platform_app) {
-    CommandLine* command_line = CommandLine::ForCurrentProcess();
-    application_launch::OpenApplication(
-        browser()->profile(),
-        extension,
-        extension_misc::LAUNCH_NONE,
-        GURL(),
-        NEW_WINDOW,
-        command_line);
+    application_launch::LaunchParams params(browser()->profile(), extension,
+                                            extension_misc::LAUNCH_NONE,
+                                            NEW_WINDOW);
+    params.command_line = CommandLine::ForCurrentProcess();
+    application_launch::OpenApplication(params);
   }
 
   if (!catcher.GetNextResult()) {