Adds a menu item for additional battery info to battery settings.

This is a manual cherry-pick of commit
1e0f8ff5e5.

Bug: 33352540
Test: No additional test failures.

Change-Id: Ibfc1a9463c93d3c087ed712fe45d3d0717472c6a

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

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge;
+
+/**
+ * Feature Provider used in power usage
+ */
+public interface PowerUsageFeatureProvider {
+
+  boolean isAdditionalBatteryInfoEnabled();
+}