Test BlockingLoginTestInstance with enabled webview

chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc

Index: chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc
diff --git a/chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc b/chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc
index 9b56692b8e30945f987b45426353b6c8b884f622..e53389d1e7667d8a45e069d0683de0192db91434 100644
--- a/chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc
+++ b/chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.cc
@@ -16,6 +16,7 @@
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
+#include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
 #include "chrome/browser/chromeos/policy/user_cloud_external_data_manager.h"
 #include "chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h"
@@ -152,7 +153,8 @@ scoped_ptr<UserCloudPolicyManagerChromeOS>
   // TODO(xiyuan): Update the code below after http://crbug.com/462036.
   const bool wait_for_initial_policy =
       !is_browser_restart &&
-      chromeos::UserSessionManager::GetInstance()->has_auth_cookies() &&
+      (chromeos::UserSessionManager::GetInstance()->has_auth_cookies() ||
+       chromeos::StartupUtils::IsWebviewSigninEnabled()) &&

[xiyuan, 2015/04/27 16:33:27]

When UserCloudPolicyManagerChromeOS is smart to start policy fetching using RT,
this is not necessary and the line 156 can be removed too.

       (user_manager::UserManager::Get()->IsCurrentUserNew() ||
        is_affiliated_user);