Remove redundant field initialization in Java code.

device/battery/android/java/src/org/chromium/device/battery/BatteryStatusManager.java

 // Copyright 2014 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.
 
 package org.chromium.device.battery;
 
 import android.annotation.TargetApi;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ skipping 30 matching lines @@
             BatteryStatusManager.this.onReceive(intent);
         }
     };
 
     // This is to workaround a Galaxy Nexus bug, see the comment in the constructor.
     private final boolean mIgnoreBatteryPresentState;
 
     // Only used in L (API level 21) and higher.
     private AndroidBatteryManagerWrapper mAndroidBatteryManager;
 
-    private boolean mEnabled = false;
+    private boolean mEnabled;
 
     @VisibleForTesting
     static class AndroidBatteryManagerWrapper {
         private final BatteryManager mBatteryManager;
 
         protected AndroidBatteryManagerWrapper(BatteryManager batteryManager) {
             mBatteryManager = batteryManager;
         }
 
         public int getIntProperty(int id) {
@@ skipping 121 matching lines @@
             }
         } else {
             if (averageCurrentMicroA < 0) {
                 double dischargeFromFullHours = batteryCapacityMicroAh / -averageCurrentMicroA;
                 batteryStatus.dischargingTime =
                         Math.floor(remainingCapacityRatio * dischargeFromFullHours * 3600.0);
             }
         }
     }
 }