[Audiosharing] Add sharing dialogs custom title layout.

Bug: 305620450
Test: manual
Change-Id: I3e27812613e35228acadc0fdb99ae50fdf38e834

res/layout/dialog_custom_title_audio_sharing.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2023 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:orientation="vertical"
+    android:padding="?android:dialogPreferredPadding">
+
+    <ImageView
+        android:id="@+id/title_icon"
+        android:layout_width="32dp"
+        android:layout_height="32dp"
+        android:layout_gravity="center"
+        android:tint="?android:attr/colorControlNormal" />
+
+    <TextView
+        android:id="@+id/title_text"
+        style="?android:attr/windowTitleStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:maxLines="2"
+        android:paddingTop="14dp"
+        android:textAlignment="center"
+        android:textSize="24sp" />
+</LinearLayout>