PaymentRequest.abort() should return a promise.

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 324 matching lines @@
     "//components/invalidation/impl:java",
     "//components/invalidation/impl:javatests",
     "//components/navigation_interception/android:navigation_interception_java",
     "//components/policy/android:policy_java",
     "//components/precache/android:precache_java",
     "//components/precache/android:precache_javatests",
     "//components/web_contents_delegate_android:web_contents_delegate_android_java",
     "//components/web_restrictions:web_restrictions_java",
     "//content/public/android:content_java",
     "//content/public/test/android:content_java_test_support",
+    "//mojo/public/java:bindings",
+    "//mojo/public/java:system",
     "//net/android:net_java",
     "//net/android:net_java_test_support",
     "//printing:printing_java",
     "//sync:sync_java_test_support",
     "//sync/android:sync_java",
     "//sync/android:sync_javatests",
+    "//third_party/WebKit/public:android_mojo_bindings_java",
     "//third_party/WebKit/public:blink_headers_java",
     "//third_party/android_tools:android_support_design_java",
     "//third_party/android_tools:android_support_v13_java",
     "//third_party/android_tools:android_support_v7_appcompat_java",
     "//third_party/android_tools:android_support_v7_recyclerview_java",
     "//third_party/android_tools:legacy_http_javalib",
     "//third_party/cacheinvalidation:cacheinvalidation_javalib",
     "//third_party/custom_tabs_client:custom_tabs_support_lib",
     "//third_party/jsr-305:jsr_305_javalib",
     "//ui/android:ui_java",
@@ skipping 233 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_java_debug
 }