Add new expandable preference component

Bug: 177406865
Bug: 185187729
Test: make SettingsRoboTests
Test: make SettingsGoogleRoboTests
Change-Id: Id2b2a1f4fa557467efcaa013aa9e978b2c66d974

res/layout/preference_expand_divider.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2021 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.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="?android:attr/listPreferredItemHeightSmall"
+    android:gravity="center_vertical"
+    android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"
+    android:paddingStart="?android:attr/listPreferredItemPaddingStart"
+    android:paddingRight="?android:attr/listPreferredItemPaddingRight"
+    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
+    android:background="?android:attr/selectableItemBackground"
+    android:orientation="horizontal"
+    android:clipToPadding="false"
+    android:baselineAligned="false">
+
+    <TextView
+        android:id="@+id/expand_title"
+        android:layout_width="0px"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:paddingEnd="4dp"
+        android:singleLine="true"
+        android:textAlignment="viewStart"
+        android:text="@string/battery_system_usage_for_past_24"
+        style="@style/PreferenceCategoryTitleTextStyle"/>
+
+    <ImageView
+        android:id="@+id/expand_icon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_settings_expand_more"/>
+
+</LinearLayout>