Tray elements behave appropriately on the multiple signin screen (more like lock screen)

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index 19e7ec25bd8f89bb051e4a6c7a460ff9388f858b..e91e357254e17ca5e077d90d0f6af5540b5545f3 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -220,6 +220,10 @@ void BluetoothDeviceConnectError(
 }
 
 void ShowSettingsSubPageForActiveUser(const std::string& sub_page) {
+  ash::Shell::GetInstance()
+      ->session_state_delegate()
+      ->HideMultipleSigninScreen();
+
   chrome::ShowSettingsSubPageForProfile(
       ProfileManager::GetActiveUserProfile(), sub_page);
 }
@@ -843,6 +847,10 @@ void SystemTrayDelegateChromeOS::ShowMobileSetupDialog(
 
 void SystemTrayDelegateChromeOS::ShowOtherNetworkDialog(
     const std::string& type) {
+  ash::Shell::GetInstance()
+      ->session_state_delegate()
+      ->HideMultipleSigninScreen();
+
   if (type == shill::kTypeCellular) {
     ChooseMobileNetworkDialog::ShowDialog(GetNativeWindow());
     return;