Android: Simplify isTablet and InterfaceRegistrars

services/device/battery/android/java/src/org/chromium/device/battery/BatteryMonitorFactory.java

Index: services/device/battery/android/java/src/org/chromium/device/battery/BatteryMonitorFactory.java
diff --git a/services/device/battery/android/java/src/org/chromium/device/battery/BatteryMonitorFactory.java b/services/device/battery/android/java/src/org/chromium/device/battery/BatteryMonitorFactory.java
index db74ff1a4032e44e0bce0ece7952a68cf6068868..f90a513037fa6b36d1f1f38ef97ccd16e9e75291 100644
--- a/services/device/battery/android/java/src/org/chromium/device/battery/BatteryMonitorFactory.java
+++ b/services/device/battery/android/java/src/org/chromium/device/battery/BatteryMonitorFactory.java
@@ -4,8 +4,6 @@
 
 package org.chromium.device.battery;
 
-import android.content.Context;
-
 import org.chromium.base.Log;
 import org.chromium.base.ThreadUtils;
 import org.chromium.device.battery.BatteryStatusManager.BatteryStatusCallback;
@@ -42,8 +40,7 @@ public class BatteryMonitorFactory implements InterfaceFactory<BatteryMonitor> {
         }
     };
 
-    public BatteryMonitorFactory(Context applicationContext) {
-        assert applicationContext != null;
+    public BatteryMonitorFactory() {
         mManager = new BatteryStatusManager(mCallback);
     }