ash: Improve low-battery notification thresholds.

ash/system/chromeos/power/tray_power.h

 // 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.
 
 #ifndef ASH_SYSTEM_CHROMEOS_POWER_TRAY_POWER_H_
 #define ASH_SYSTEM_CHROMEOS_POWER_TRAY_POWER_H_
 
 #include "ash/system/chromeos/power/power_status.h"
 #include "ash/system/tray/system_tray_item.h"
 
@@ skipping 23 matching lines @@
   enum NotificationState {
     NOTIFICATION_NONE,
 
     // Low battery charge.
     NOTIFICATION_LOW_POWER,
 
     // Critically low battery charge.
     NOTIFICATION_CRITICAL,
   };
 
+  // Time-based notification thresholds when on battery power.
+  static const int kCriticalMinutes;
+  static const int kLowPowerMinutes;
+  static const int kNoWarningMinutes;
+
+  // Percentage-based notification thresholds when using a low-power charger.
+  static const int kCriticalPercentage;
+  static const int kLowPowerPercentage;
+  static const int kNoWarningPercentage;
+
   TrayPower(SystemTray* system_tray,
             message_center::MessageCenter* message_center);
   virtual ~TrayPower();
 
  private:
   friend class TrayPowerTest;
 
   // Overridden from SystemTrayItem.
   virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
@@ skipping 27 matching lines @@
   // called?
   bool usb_charger_was_connected_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayPower);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_POWER_TRAY_POWER_H_