Upstream: Extract "WebAPK service" implementation from Chrome APK

chrome/android/BUILD.gn

 # 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 import("//build_overrides/v8.gni")
 import("//chrome/android/chrome_public_apk_tmpl.gni")
 import("//chrome/common/features.gni")
 import("//chrome/version.gni")
@@ skipping 361 matching lines @@
 }
 
 android_assets("chrome_public_apk_assets") {
   sources = chrome_android_paks_gypi.chrome_android_pak_input_resources
   sources += [ "$root_build_dir/resources.pak" ]
   disable_compression = true
 
   deps = [
     "//chrome:packed_extra_resources",
     "//chrome:packed_resources",
+    "//chrome/android/webapk/libs/runtime_library:runtime_library_assets",
     "//third_party/icu:icu_assets",
     "//v8:v8_external_startup_data_assets",
   ]
 }
 
 # GYP: //chrome/android/chrome_apk.gyp:chrome_apk_manifest
 jinja_template("chrome_public_apk_manifest") {
   input = "java/AndroidManifest.xml"
   output = "$root_gen_dir/chrome_public_apk_manifest/AndroidManifest.xml"
   variables = chrome_public_jinja_variables
@@ skipping 199 matching lines @@
 instrumentation_test_apk("chrome_sync_shell_test_apk") {
   apk_name = "ChromeSyncShellTest"
   apk_under_test = ":chrome_sync_shell_apk"
   android_manifest = chrome_sync_shell_test_apk_manifest
   deps = [
     ":chrome_sync_shell_test_apk_java",
     ":chrome_sync_shell_test_apk_manifest",
   ]
   proguard_enabled = !is_debug
 }