[cros] Modify oobe/login tests to work with webview

chrome/browser/chromeos/login/proxy_auth_dialog_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 "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/login/login_manager_test.h"
@@ skipping 50 matching lines @@
 // iframe (false) GAIA sign in.
 class ProxyAuthOnUserBoardScreenTest
     : public LoginManagerTest,
       public testing::WithParamInterface<bool> {
  public:
   ProxyAuthOnUserBoardScreenTest()
       : LoginManagerTest(true /* should_launch_browser */),
         proxy_server_(net::SpawnedTestServer::TYPE_BASIC_AUTH_PROXY,
                       net::SpawnedTestServer::kLocalhost,
                       base::FilePath()) {
-    // TODO(paulmeyer): Re-enable webview version of this test
-    // (uncomment this line) once http://crbug.com/452452 is fixed.
-    // set_use_webview(GetParam());
+    set_use_webview(GetParam());
   }
 
   ~ProxyAuthOnUserBoardScreenTest() override {}
 
   void SetUp() override {
     ASSERT_TRUE(proxy_server_.Start());
     LoginManagerTest::SetUp();
   }
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
@@ skipping 37 matching lines @@
     ASSERT_TRUE(content::ExecuteScript(oobe_ui->web_ui()->GetWebContents(),
                                        "window.domAutomationController.send(!!("
                                        "$('add-user-button').click()"
                                        "));"));
     screen_waiter.Wait();
     auth_dialog_waiter.Wait();
     ASSERT_TRUE(auth_dialog_waiter.login_handler());
   }
 }
 
+// TODO(paulmeyer): Re-enable webview version of this test
+// (once http://crbug.com/452452 is fixed.
 INSTANTIATE_TEST_CASE_P(ProxyAuthOnUserBoardScreenTestSuite,
                         ProxyAuthOnUserBoardScreenTest,
-                        testing::Bool());
+                        testing::Values(false));
 
 }  // namespace chromeos