Build public monochrome

chrome/android/java/AndroidManifest_monochrome.xml

+{% extends "chrome/android/java/AndroidManifest.xml" %}
+{% import 'android_webview/apk/java/AndroidManifest.xml' as webview %}
+
+## Copyright 2016 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.
+
+## Note: This is a jinja2 template, processed at build time into the final manifest.
+##
+
+{% block application_name %}org.chromium.chrome.browser.MonochromeApplication{% endblock %}
+
+##
+## The below is same as internal version, it seems that jinja doesn't have
+## a good way to share it, this code has to be duplicated.
+##
+
+{% block extra_application_attributes %}
+{{ super() }}
+android:multiArch="true"
+android:extractNativeLibs="false"
+{{use32bitAbi|default('')}}
+{% endblock %}
+
+{% block extra_keyset_definitions %}
+  <!-- No keyset definitions should exist for any monochrome apks -->
+{% endblock %}
+
+{% block extra_application_definitions %}
+{{ super() }}
+{{ webview.common(manifest_package, 'libmonochrome.so') }}
+{% endblock %}