Add Physical Web opt-in dialog

chrome/android/java/res/values-v17/styles.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright 2014 The Chromium Authors. All rights reserved.
      Use of this source code is governed by a BSD-style license that can be
      found in the LICENSE file. -->
 
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Q: Why put style resources under values-v17/ ?
          A: Problem:
             1. paddingStart causes a crash on Galaxy Tab&Note b/8351339.
             2. So we wrote a build script(generate_v14_compatible_resources.py) to convert
@@ skipping 428 matching lines @@
         <item name="android:textColor">#CCC</item>
         <item name="android:textSize">@dimen/contextual_search_text_size</item>
     </style>
 
     <!-- Physical Web styles -->
     <style name="PhysicalWebNearbyUrlsListStyle" parent="Theme.AppCompat.Light">
         <item name="android:windowBackground">@android:color/white</item>
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">match_parent</item>
     </style>
+    <style name="PhysicalWebOptInStyle" parent="Theme.AppCompat.Light">
+        <item name="android:windowBackground">@android:color/white</item>
+        <item name="windowNoTitle">true</item>
+        <item name="windowActionBar">false</item>
+        <item name="android:windowContentOverlay">@null</item>
+    </style>
 
     <!-- Misc styles -->
     <style name="SnackbarAnimation">
         <item name="android:windowEnterAnimation">@anim/snackbar_in</item>
         <item name="android:windowExitAnimation">@anim/snackbar_out</item>
     </style>
     <style name="SnackbarAnimationWithKeyboard">
         <item name="android:windowEnterAnimation">@anim/snackbar_in_with_keyboard</item>
         <item name="android:windowExitAnimation">@anim/snackbar_out</item>
     </style>
@@ skipping 14 matching lines @@
     <style name="UpdateMenuBadge">
         <item name="android:layout_height">@dimen/menu_badge_size</item>
         <item name="android:layout_width">@dimen/menu_badge_size</item>
         <item name="android:layout_gravity">end|bottom</item>
         <item name="android:layout_marginBottom">14dp</item>
         <item name="android:focusable">false</item>
         <item name="android:importantForAccessibility">no</item>
         <item name="android:visibility">invisible</item>
     </style>
 </resources>