Chromad: Set proper IsUsingOAuth in UserContext

BUG=chromium:907504
TEST=manual

Change-Id: I8b9bad1f16fe539b7e25134b5fdc0d7dd63094a8
Reviewed-on: https://chromium-review.googlesource.com/c/1349323Reviewed-by: Jacob Dufault <jdufault@chromium.org>
Commit-Queue: Roman Sorokin <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612136}

chrome/browser/chromeos/login/ui/login_display_host_mojo.cc

@@ -363,11 +363,13 @@ void LoginDisplayHostMojo::HandleAuthenticateUserWithPasswordOrPin(
   //
   // More details can be found in https://crbug.com/386606
   user_context.SetPasswordKey(Key(password));
-  if (account_id.GetAccountType() == AccountType::ACTIVE_DIRECTORY &&
-      (user_context.GetUserType() !=
-       user_manager::UserType::USER_TYPE_ACTIVE_DIRECTORY)) {
-    LOG(FATAL) << "Incorrect Active Directory user type "
-               << user_context.GetUserType();
+  if (account_id.GetAccountType() == AccountType::ACTIVE_DIRECTORY) {
+    if (user_context.GetUserType() !=
+        user_manager::UserType::USER_TYPE_ACTIVE_DIRECTORY) {
+      LOG(FATAL) << "Incorrect Active Directory user type "
+                 << user_context.GetUserType();
+    }
+    user_context.SetIsUsingOAuth(false);
   }
 
   existing_user_controller_->Login(user_context, chromeos::SigninSpecifics());

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

@@ -1220,11 +1220,13 @@ void SigninScreenHandler::AuthenticateExistingUser(const AccountId& account_id,
   // network. See https://crbug.com/386606 for details.
   user_context.SetPasswordKey(Key(password));
   user_context.SetIsUsingPin(authenticated_by_pin);
-  if (account_id.GetAccountType() == AccountType::ACTIVE_DIRECTORY &&
-      (user_context.GetUserType() !=
-       user_manager::UserType::USER_TYPE_ACTIVE_DIRECTORY)) {
-    LOG(FATAL) << "Incorrect Active Directory user type "
-               << user_context.GetUserType();
+  if (account_id.GetAccountType() == AccountType::ACTIVE_DIRECTORY) {
+    if (user_context.GetUserType() !=
+        user_manager::UserType::USER_TYPE_ACTIVE_DIRECTORY) {
+      LOG(FATAL) << "Incorrect Active Directory user type "
+                 << user_context.GetUserType();
+    }
+    user_context.SetIsUsingOAuth(false);
   }
 
   delegate_->Login(user_context, SigninSpecifics());