Remove pre-MD code from PowerStatusView.

ash/common/system/chromeos/power/power_status.cc

 // Copyright (c) 2013 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/common/system/chromeos/power/power_status.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "ash/resources/vector_icons/vector_icons.h"
@@ skipping 272 matching lines @@
          source.active_by_default() ? DEDICATED_CHARGER : DUAL_ROLE_USB,
          PowerSourceToMessageID(source)});
   }
   return sources;
 }
 
 std::string PowerStatus::GetCurrentPowerSourceID() const {
   return proto_.external_power_source_id();
 }
 
-PowerStatus::BatteryImageInfo PowerStatus::GetBatteryImageInfo(
-    IconSet icon_set) const {
+PowerStatus::BatteryImageInfo PowerStatus::GetBatteryImageInfo() const {
   BatteryImageInfo info;
   CalculateBatteryImageInfo(&info);
   return info;
 }
 
 void PowerStatus::CalculateBatteryImageInfo(BatteryImageInfo* info) const {
   if (!IsUsbChargerConnected() && !IsBatteryPresent()) {
     info->icon_badge = &kSystemTrayBatteryXIcon;
     info->charge_level = 0;
     return;
@@ skipping 124 matching lines @@
 
 void PowerStatus::PowerChanged(
     const power_manager::PowerSupplyProperties& proto) {
   proto_ = proto;
   SanitizeProto(&proto_);
   for (auto& observer : observers_)
     observer.OnPowerStatusChanged();
 }
 
 }  // namespace ash