Render Ash material design battery image icon without PNGs

ash/system/chromeos/power/tray_power.cc

Index: ash/system/chromeos/power/tray_power.cc
diff --git a/ash/system/chromeos/power/tray_power.cc b/ash/system/chromeos/power/tray_power.cc
index a5b4f1e1c5d7e843a28e91d86b4524eb4246c172..ab4afc5e1f83461e558015459455ff0115af6965 100644
--- a/ash/system/chromeos/power/tray_power.cc
+++ b/ash/system/chromeos/power/tray_power.cc
@@ -120,7 +120,7 @@ class PowerTrayView : public views::ImageView {
     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;
     }
   }