Support SystemTrayDelegate::ShowPowerSettings() in mustash

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 a78cad3166ccac5514271bb79753e08915d87304..46b3cbd86ca8da8d086d9a5853646a6f0e93c291 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -445,14 +445,7 @@ void SystemTrayDelegateChromeOS::ShowDisplaySettings() {
 }
 
 void SystemTrayDelegateChromeOS::ShowPowerSettings() {
-  // TODO(mash): Refactor out ash::PowerStatus and move to SystemTrayCommon.
-  if (!(switches::PowerOverlayEnabled() ||
-        (ash::PowerStatus::Get()->IsBatteryPresent() &&
-         ash::PowerStatus::Get()->SupportsDualRoleDevices()))) {
-    return;
-  }
-  content::RecordAction(base::UserMetricsAction("Tray_ShowPowerOptions"));
-  ShowSettingsSubPageForActiveUser(chrome::kPowerOptionsSubPage);
+  SystemTrayCommon::ShowPowerSettings();
 }
 
 void SystemTrayDelegateChromeOS::ShowChromeSlow() {