Smear screen power usage based on activity time.

Bug: 38328636
Test: RunSettingsRoboTests
Change-Id: I8e7baadcd88a8e9d674f5bc8d8e42e0f3953c98a

src/com/android/settings/fuelgauge/PowerUsageBase.java

@@ -57,7 +57,7 @@ public abstract class PowerUsageBase extends DashboardFragment
 
         mBatteryBroadcastReceiver = new BatteryBroadcastReceiver(getContext());
         mBatteryBroadcastReceiver.setBatteryChangedListener(() -> {
-            getLoaderManager().restartLoader(0, null, this);
+            restartBatteryStatsLoader();
         });
 
         getLoaderManager().initLoader(0, icicle, this);
@@ -95,6 +95,10 @@ public abstract class PowerUsageBase extends DashboardFragment
         }
     }
 
+    protected void restartBatteryStatsLoader() {
+        getLoaderManager().restartLoader(0, Bundle.EMPTY, this);
+    }
+
     protected abstract void refreshUi();
 
     protected void updatePreference(BatteryHistoryPreference historyPref) {