cros: HTML fixes needed to reinitializing an existing lock WebUI.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
index bee099c2b7d1672e3b79fefec32bd418ffcc6182..be30ca52f81e210b85f90dd0a60e70c02cfdd037 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
@@ -900,6 +900,17 @@ void SigninScreenHandler::ReloadGaia(bool force_reload) {
 }
 
 void SigninScreenHandler::Initialize() {
+  // delegate_ is null when we are preloading the lock screen. There may be no

[xiyuan, 2016/12/09 22:47:21]

nit: delegate_ -> |delegate_|

[jdufault, 2016/12/12 19:52:02]

Done.

+  // primary user in a test.
+  if (user_manager::UserManager::IsInitialized() &&
+      user_manager::UserManager::Get()->GetPrimaryUser()) {
+    chromeos::PinStorage* pin_storage =

[Alexander Alekseev, 2016/12/10 01:26:49]

I assume that you are only looaking at active user because this is a lock screen
and at the time the lock screen is preloaded only one user is active, aren't
you? Probably we need a comment here why only one user is checked for PIN.

[jdufault, 2016/12/12 19:52:02]

I've changed this to iterate over every user.

+        chromeos::PinStorageFactory::GetForUser(
+            user_manager::UserManager::Get()->GetActiveUser());
+    if (pin_storage && pin_storage->IsPinAuthenticationAvailable())
+      CallJS("cr.ui.Oobe.preloadPin");
+  }
+
   if (delegate_ && show_on_init_) {
     show_on_init_ = false;
     ShowImpl();