cros: Use custom icon for low-power charger notification

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 "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/system/chromeos/power/power_status_view.h"
@@ skipping 263 matching lines @@
         IDR_AURA_UBER_TRAY_POWER_SMALL_DARK : IDR_AURA_UBER_TRAY_POWER_SMALL);
   }
   gfx::Rect region(
       image_offset * kBatteryImageWidth,
       image_index * kBatteryImageHeight,
       kBatteryImageWidth, kBatteryImageHeight);
   return gfx::ImageSkiaOperations::ExtractSubset(*all.ToImageSkia(), region);
 }
 
 // static
-gfx::Image TrayPower::GetUsbChargerNotificationImage() {
-  // TODO(jamescook): Use a specialized art asset here.
-  gfx::ImageSkia icon =
-      GetBatteryImage(kNumPowerImages - 1, 0, true, ICON_LIGHT);
-  return gfx::Image(icon);
-}
-
-// static
 base::string16 TrayPower::GetAccessibleNameString(
     const chromeos::PowerSupplyStatus& supply_status) {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   if (supply_status.line_power_on && supply_status.battery_is_full) {
     return rb.GetLocalizedString(
         IDS_ASH_STATUS_TRAY_BATTERY_FULL_CHARGE_ACCESSIBLE);
   }
   bool charging_unreliable =
       IsBatteryChargingUnreliable(supply_status);
   if (supply_status.battery_percentage < 0.0f) {
@@ skipping 134 matching lines @@
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   const char kNotificationId[] = "usb-charger";
   // Check for a USB charger being connected.
   if (new_status.battery_state == PowerSupplyStatus::CONNECTED_TO_USB &&
       old_status.battery_state != PowerSupplyStatus::CONNECTED_TO_USB) {
     scoped_ptr<Notification> notification(new Notification(
         message_center::NOTIFICATION_TYPE_SIMPLE,
         kNotificationId,
         rb.GetLocalizedString(IDS_ASH_STATUS_TRAY_LOW_POWER_CHARGER_TITLE),
         rb.GetLocalizedString(IDS_ASH_STATUS_TRAY_LOW_POWER_CHARGER_MESSAGE),
-        GetUsbChargerNotificationImage(),
+        rb.GetImageNamed(IDR_AURA_NOTIFICATION_LOW_POWER_CHARGER),
         base::string16(),
         std::string(),
         message_center::RichNotificationData(),
         NULL));
     message_center_->AddNotification(notification.Pass());
     return true;
   }
 
   // Check for unplug of a USB charger while the USB charger notification is
   // showing.
@@ skipping 79 matching lines @@
       return false;
     case NOTIFICATION_CRITICAL:
       return false;
   }
   NOTREACHED();
   return false;
 }
 
 }  // namespace internal
 }  // namespace ash