Add support for webapk without runtimeHost (part 2)

chrome/android/webapk/shell_apk/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/android/rules.gni")
 import("manifest_processor.gni")
 import("shell_apk_version.gni")
 
 declare_args() {
   # The browser that the WebAPK will be bound to.
   webapk_runtime_host = "com.google.android.apps.chrome"
 
+  # The application name of the browser that the WebAPK will be bound to.
+  webapk_runtime_host_application_name = "Chromium"
+
   # The Url of the Web Manifest file.
   webapk_web_manifest_url = "https://www.template.com/manifest.json"
 
   # Murmur2 hash of the homescreen icon. The hash should be of the icon as it is
   # available from the web. The icon bytes should not be transformed (e.g.
   # decoded / encoded) prior to taking the hash.
   webapk_icon_murmur2_hash = "0"
 
   # Attributes from Web Manifest.
   webapk_start_url = "https://www.template.com/home_page"
@@ skipping 27 matching lines @@
     "$target_gen_dir/shell_apk_manifest_javatests/AndroidManifest.xml"
 
 manifest_processor_template("shell_apk_manifest") {
   input = "AndroidManifest.xml"
   output = shell_apk_manifest
 
   variables = [
     "shell_apk_version=$template_shell_apk_version",
     "manifest_package=org.chromium.webapk",
     "runtime_host=$webapk_runtime_host",
+    "runtime_host_application_name=$webapk_runtime_host_application_name",
     "start_url=$webapk_start_url",
     "name=$webapk_name",
     "short_name=$webapk_short_name",
     "scope_url=$webapk_scope_url",
     "display_mode=$webapk_display_mode",
     "orientation=$webapk_orientation",
     "theme_color=$webapk_theme_color",
     "background_color=$webapk_background_color",
     "icon_urls_and_icon_murmur2_hashes=$webapk_icon_urls_and_icon_murmur2_hashes",
     "scope_url_scheme=$webapk_scope_url_scheme",
@@ skipping 39 matching lines @@
     ":webapk_strings_grd",
   ]
 }
 
 android_library("webapk_java") {
   java_files = [
     "src/org/chromium/webapk/shell_apk/DexLoader.java",
     "src/org/chromium/webapk/shell_apk/HostBrowserClassLoader.java",
     "src/org/chromium/webapk/shell_apk/ChooseHostBrowserDialog.java",
     "src/org/chromium/webapk/shell_apk/MainActivity.java",
+    "src/org/chromium/webapk/shell_apk/InstallHostBrowserDialog.java",
     "src/org/chromium/webapk/shell_apk/WebApkSandboxedProcessService.java",
     "src/org/chromium/webapk/shell_apk/WebApkSandboxedProcessService0.java",
     "src/org/chromium/webapk/shell_apk/WebApkSandboxedProcessService1.java",
     "src/org/chromium/webapk/shell_apk/WebApkSandboxedProcessService2.java",
     "src/org/chromium/webapk/shell_apk/WebApkServiceFactory.java",
     "src/org/chromium/webapk/shell_apk/WebApkUtils.java",
   ]
   deps = [
     ":shell_apk_resources",
     "//chrome/android/webapk/libs/common:common_java",
@@ skipping 113 matching lines @@
   java_files = [
     "junit/src/org/chromium/webapk/shell_apk/HostBrowserClassLoaderTest.java",
     "junit/src/org/chromium/webapk/shell_apk/WebApkUtilsTest.java",
   ]
   deps = [
     ":webapk_java",
     "//chrome/android/webapk/libs/common:common_java",
     "//chrome/android/webapk/test:junit_test_support",
   ]
 }