Update low battery tips string

- Screenshot: https://screenshot.googleplex.com/33zJkqsTex8r49W.png

Bug: 183689347
Test: make RunSettingsRoboTests
Change-Id: I864c555c3e500bf4ae5364db8dd6c86be564b883

src/com/android/settings/fuelgauge/batterytip/BatteryTipLoader.java

@@ -89,8 +89,7 @@ public class BatteryTipLoader extends AsyncLoaderCompat<List<BatteryTip>> {
         final List<BatteryTip> tips = new ArrayList<>();
         tips.add(new SummaryTip(BatteryTip.StateType.NEW,
                 EstimateKt.AVERAGE_TIME_TO_DISCHARGE_UNKNOWN));
-        tips.add(new LowBatteryTip(BatteryTip.StateType.NEW, false /* powerSaveModeOn */,
-                "Fake data"));
+        tips.add(new LowBatteryTip(BatteryTip.StateType.NEW, false /* powerSaveModeOn */));
 
         return tips;
     }

src/com/android/settings/fuelgauge/batterytip/detectors/LowBatteryDetector.java

@@ -61,7 +61,6 @@ public class LowBatteryDetector implements BatteryTipDetector {
             state = BatteryTip.StateType.NEW;
         }
 
-        return new LowBatteryTip(
-                state, powerSaveModeOn, mBatteryInfo.suggestionLabel);
+        return new LowBatteryTip(state, powerSaveModeOn);
     }
 }

src/com/android/settings/fuelgauge/batterytip/tips/LowBatteryTip.java

@@ -21,34 +21,36 @@ import android.content.Context;
 import android.os.Parcel;
 import android.os.Parcelable;
 
+import com.android.settings.R;
 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
 
 /**
  * Tip to show current battery level is low or remaining time is less than a certain period
  */
 public class LowBatteryTip extends EarlyWarningTip {
-    private CharSequence mSummary;
 
-    public LowBatteryTip(@StateType int state, boolean powerSaveModeOn, CharSequence summary) {
+    public LowBatteryTip(@StateType int state, boolean powerSaveModeOn) {
         super(state, powerSaveModeOn);
         mType = TipType.LOW_BATTERY;
-        mSummary = summary;
     }
 
     public LowBatteryTip(Parcel in) {
         super(in);
-        mSummary = in.readCharSequence();
+    }
+
+    @Override
+    public CharSequence getTitle(Context context) {
+        return context.getString(R.string.battery_tip_low_battery_title);
     }
 
     @Override
     public CharSequence getSummary(Context context) {
-        return mSummary;
+        return context.getString(R.string.battery_tip_low_battery_summary);
     }
 
     @Override
     public void writeToParcel(Parcel dest, int flags) {
         super.writeToParcel(dest, flags);
-        dest.writeCharSequence(mSummary);
     }
 
     @Override