Make PowerStatusView::GetRoundedBatteryPercentage() round.

ash/system/power/power_status_view.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/power/power_status_view.h"
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/system/power/tray_power.h"
 #include "ash/system/tray/fixed_sized_image_view.h"
@@ skipping 222 matching lines @@
       }
     }
   } else {
     time_label_->SetText(base::string16());
   }
 }
 
 int PowerStatusView::GetRoundedBatteryPercentage() const {
   DCHECK(supply_status_.battery_percentage >= 0.0f);
   return std::max(kMinBatteryPercent,
-      static_cast<int>(supply_status_.battery_percentage));
+      static_cast<int>(supply_status_.battery_percentage + 0.5));
 }
 
 base::string16 PowerStatusView::GetBatteryTimeAccessibilityString(
     int hour, int min) {
   DCHECK(hour || min);
   if (hour && !min) {
     return Shell::GetInstance()->delegate()->GetTimeDurationLongString(
         base::TimeDelta::FromHours(hour));
   } else if (min  && !hour) {
     return Shell::GetInstance()->delegate()->GetTimeDurationLongString(
@@ skipping 45 matching lines @@
 
   // Move the time_status_label_ closer to percentage_label_.
   if (percentage_label_ && time_status_label_ &&
       percentage_label_->visible() && time_status_label_->visible()) {
     time_status_label_->SetX(percentage_label_->bounds().right() + 1);
   }
 }
 
 }  // namespace internal
 }  // namespace ash