Implement NetworkRequestDialog architecture

Bug: 117399926
Test: RunSettingsRoboTests

Change-Id: Ibf0a62a84bc3de080e4537ba084b0ff9a5e0e9a9

res/layout/network_request_dialog_title.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 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:paddingEnd="?android:attr/dialogPreferredPadding"
+    android:orientation="horizontal"
+    android:background="?android:attr/selectableItemBackground"
+    android:minHeight="?android:attr/listPreferredItemHeightSmall">
+
+  <TextView
+      android:id="@+id/network_request_title_text"
+      android:layout_width="0dp"
+      android:layout_height="match_parent"
+      android:paddingLeft="16dip"
+      android:layout_weight="1"
+      android:textSize="18sp"
+      android:gravity="center_vertical"
+      style="@style/info_label"/>
+
+  <ProgressBar
+      android:id="@+id/network_request_title_progress"
+      style="?android:attr/progressBarStyleSmallTitle"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_gravity="center_vertical"
+      android:layout_marginStart="16dip"
+      android:minWidth="32dp"
+      android:text="@string/progress_scanning"/>
+</LinearLayout>