"up-to-date" should only use hyphens when used as compound modifier of a noun

ash/system/chromeos/power/tray_power.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/system/chromeos/power/tray_power.h"
 
 #include <utility>
 
 #include "ash/ash_switches.h"
 #include "ash/common/accessibility_delegate.h"
@@ skipping 154 matching lines @@
   // There may not be enough information when this is created about whether
   // there is a battery or not. So always create this, and adjust visibility as
   // necessary.
   CHECK(power_tray_ == NULL);
   power_tray_ = new tray::PowerTrayView();
   power_tray_->UpdateStatus(false);
   return power_tray_;
 }
 
 views::View* TrayPower::CreateDefaultView(LoginStatus status) {
-  // Make sure icon status is up-to-date. (Also triggers stub activation).
+  // Make sure icon status is up to date. (Also triggers stub activation).
   PowerStatus::Get()->RequestStatusUpdate();
   return NULL;
 }
 
 void TrayPower::DestroyTrayView() {
   power_tray_ = NULL;
 }
 
 void TrayPower::DestroyDefaultView() {
 }
@@ skipping 169 matching lines @@
   }
   NOTREACHED();
   return false;
 }
 
 void TrayPower::NotifyUsbNotificationClosedByUser() {
   usb_notification_dismissed_ = true;
 }
 
 }  // namespace ash