[WebNFC] Use png image instead of vector for settings icon

This CL replaces the vectorized icon for NFC settings with png images
so that it can be decoded in the Page Info UI. Without this, icon was
not visible.

Screenshots: https://photos.app.goo.gl/k7wz55v9ELVTS19i8

Bug: 520391
Change-Id: I356a15a24e4cfdb9d236cb92b6b45355564e3327
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1932541Reviewed-by: Peter Conn <peconn@chromium.org>
Reviewed-by: Finnur Thorarinsson <finnur@chromium.org>
Commit-Queue: François Beaufort <beaufort.francois@gmail.com>
Cr-Commit-Position: refs/heads/master@{#719115}

chrome/android/java/res/drawable/ic_settings_nfc.xml

-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright 2019 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. -->
-
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-  <path
-      android:pathData="M20,2L4,2c-1.1,0 -2,0.9 -2,2v16c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM20,20L4,20L4,4h16v16zM18,6h-5c-1.1,0 -2,0.9 -2,2v2.28c-0.6,0.35 -1,0.98 -1,1.72 0,1.1 0.9,2 2,2s2,-0.9 2,-2c0,-0.74 -0.4,-1.38 -1,-1.72L13,8h3v8L8,16L8,8h2L10,6L6,6v12h12L18,6z"
-      android:fillColor="#000000"/>
-</vector>

chrome/android/java/src/org/chromium/chrome/browser/preferences/website/ContentSettingsResources.java

@@ -162,7 +162,7 @@ public class ContentSettingsResources {
                     new ResourceItem(R.drawable.permission_midi, 0,
                             R.string.midi_sysex_permission_title, null, null, 0, 0));
             localMap.put(ContentSettingsType.NFC,
-                    new ResourceItem(R.drawable.ic_settings_nfc, R.string.nfc_permission_title,
+                    new ResourceItem(R.drawable.settings_nfc, R.string.nfc_permission_title,
                             R.string.nfc_permission_title, ContentSettingValues.ASK,
                             ContentSettingValues.BLOCK, R.string.website_settings_category_nfc_ask,
                             R.string.website_settings_category_nfc_blocked));