Disable additional GAIA UI features (right panel) when performing sign in from multi-profiles sessi…

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

Index: chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
index 121f31d0bd8e180dfa40e239ac76eed58157e884..e13edfe86dd370ce7e6262ba0edcab15589eff01 100644
--- a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/login/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
@@ -67,6 +68,14 @@ void UpdateAuthParams(base::DictionaryValue* params, bool has_users) {
     params->SetString("managedUsersRestrictionReason",
                       l10n_util::GetStringUTF16(message_id));
   }
+
+  // Now check whether we're in multi-profiles user adding scenario and
+  // disable GAIA right panel features if that's the case.
+  if (UserAddingScreen::Get()->IsRunning()) {
+    params->SetBoolean("createAccount", false);
+    params->SetBoolean("guestSignin", false);
+    params->SetBoolean("managedUsersEnabled", false);
+  }
 }
 
 }  // namespace
@@ -195,7 +204,7 @@ void GaiaScreenHandler::HandleFrameLoadingCompleted(int status) {
   }
   frame_error_ = frame_error;
   if (frame_error == net::OK) {
-    LOG(INFO) << "Gaia is loaded";
+    VLOG(1) << "Gaia is loaded";
     frame_state_ = FRAME_STATE_LOADED;
   } else {
     LOG(WARNING) << "Gaia frame error: " << frame_error_;