Indicate which authentication flow was used in UserContext

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 1091c8a012482784917d98dddecf94874ea6c93e..bee7eb9489d02dccac911bc4597fe9a3cd7d56ff 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
@@ -1011,14 +1011,21 @@ void SigninScreenHandler::UpdateAddButtonStatus() {
 }
 
 void SigninScreenHandler::HandleCompleteLogin(const std::string& typed_email,
-                                              const std::string& password) {
+                                              const std::string& password,
+                                              bool using_saml) {
   if (!delegate_)
     return;
+
   const std::string sanitized_email = gaia::SanitizeEmail(typed_email);
   delegate_->SetDisplayEmail(sanitized_email);
-  delegate_->CompleteLogin(UserContext(sanitized_email,
-                                       password,
-                                       std::string()));  // auth_code
+  delegate_->CompleteLogin(UserContext(
+      sanitized_email,
+      password,
+      std::string(),  // auth_code
+      std::string(),  // username_hash
+      true,           // using_oauth
+      using_saml ? UserContext::AUTH_FLOW_GAIA_WITH_SAML
+                 : UserContext::AUTH_FLOW_GAIA_WITHOUT_SAML));
 
   if (test_expects_complete_login_) {
     VLOG(2) << "Complete test login for " << typed_email