cros: Move IsUserSupervised and IsUserChild off SystemTrayDelegate

ash/session/session_controller.cc

Index: ash/session/session_controller.cc
diff --git a/ash/session/session_controller.cc b/ash/session/session_controller.cc
index b546c92beb460d343e225adc25238ff112ea1449..873f5776316b3a1ef2e1b3e26da39876dad18853 100644
--- a/ash/session/session_controller.cc
+++ b/ash/session/session_controller.cc
@@ -14,6 +14,7 @@
 #include "base/command_line.h"
 #include "chromeos/chromeos_switches.h"
 #include "components/signin/core/account_id/account_id.h"
+#include "components/user_manager/user_type.h"
 #include "services/service_manager/public/cpp/connector.h"
 
 using session_manager::SessionState;
@@ -126,6 +127,23 @@ const mojom::UserSession* SessionController::GetUserSession(
   return user_sessions_[index].get();
 }
 
+bool SessionController::IsUserSupervised() const {
+  if (!IsActiveUserSessionStarted())
+    return false;
+
+  user_manager::UserType active_user_type = GetUserSession(0)->type;
+  return active_user_type == user_manager::USER_TYPE_SUPERVISED ||
+         active_user_type == user_manager::USER_TYPE_CHILD;
+}
+
+bool SessionController::IsUserChild() const {
+  if (!IsActiveUserSessionStarted())
+    return false;
+
+  user_manager::UserType active_user_type = GetUserSession(0)->type;
+  return active_user_type == user_manager::USER_TYPE_CHILD;
+}
+
 void SessionController::LockScreen() {
   if (client_)
     client_->RequestLockScreen();