Change initialization of canvas used for Ash material design battery

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/common/material_design/material_design_controller.h"
@@ skipping 387 matching lines @@
 
   const bool use_alert_color =
       (info.charge_level == kMinVisualChargeLevelMd && !IsLinePowerConnected());
   const SkColor badge_color =
       use_alert_color ? kBatteryAlertColor : kBatteryBadgeColor;
   const SkColor charge_color =
       use_alert_color ? kBatteryAlertColor : kBatteryChargeColor;
   gfx::Canvas canvas(
       gfx::Size(kBatteryCanvasSizeMd, kBatteryCanvasSizeMd),
       display::Screen::GetScreen()->GetPrimaryDisplay().device_scale_factor(),
-      true);
+      false);
 
   // Paint the battery's base (background) color.
   PaintVectorIcon(&canvas, gfx::VectorIconId::SYSTEM_TRAY_BATTERY,
                   kBatteryCanvasSizeMd, kBatteryBaseColor);
 
   // Paint the charged portion of the battery. Note that |charge_height| adjusts
   // for the 2dp of padding between the bottom of the battery icon and the
   // bottom edge of |canvas|.
   const int charge_height = info.charge_level + 2;
   gfx::Rect clip_rect(0, kBatteryCanvasSizeMd - charge_height,
@@ skipping 88 matching lines @@
 }
 
 void PowerStatus::PowerChanged(
     const power_manager::PowerSupplyProperties& proto) {
   proto_ = proto;
   SanitizeProto(&proto_);
   FOR_EACH_OBSERVER(Observer, observers_, OnPowerStatusChanged());
 }
 
 }  // namespace ash