Implement browser test for It2Me

chrome/test/remoting/unauthenticated_browsertest.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 "chrome/test/remoting/remote_desktop_browsertest.h"
 
 namespace remoting {
 
 class UnauthenticatedBrowserTest : public RemoteDesktopBrowserTest {
 };
 
 IN_PROC_BROWSER_TEST_F(UnauthenticatedBrowserTest, MANUAL_Unauthenticated) {
   Install();
-  LaunchChromotingApp(true);
-  LoadBrowserTestJavaScript(app_web_content());
+  content::WebContents* content = LaunchChromotingApp(true);
+  LoadBrowserTestJavaScript(content);
 
-  content::WebContents* content = app_web_content();
   LoadScript(content, FILE_PATH_LITERAL("unauthenticated_browser_test.js"));
   RunJavaScriptTest(content, "Unauthenticated", "{}");
 
   Cleanup();
 }
 
 }  // namespace remoting