Render Ash material design battery image icon without PNGs

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 102 matching lines @@
       accessible_name_ = PowerStatus::Get()->GetAccessibleNameString(true);
       NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
     }
   }
 
  private:
   void UpdateImage() {
     const PowerStatus::BatteryImageInfo info =
         PowerStatus::Get()->GetBatteryImageInfo(PowerStatus::ICON_LIGHT);
     if (info != previous_image_info_) {
-      SetImage(PowerStatus::Get()->GetBatteryImage(PowerStatus::ICON_LIGHT));
+      SetImage(PowerStatus::Get()->GetBatteryImage(info));
       previous_image_info_ = info;
     }
   }
 
   base::string16 accessible_name_;
 
   // Information about the last-used image. Cached to avoid unnecessary updates
   // (http://crbug.com/589348).
   PowerStatus::BatteryImageInfo previous_image_info_;
 
@@ skipping 221 matching lines @@
   }
   NOTREACHED();
   return false;
 }
 
 void TrayPower::NotifyUsbNotificationClosedByUser() {
   usb_notification_dismissed_ = true;
 }
 
 }  // namespace ash