PaymentApp: Implement invokePaymentApp() in renderer side.

content/test/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/chrome_build.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
@@ skipping 598 matching lines @@
     "../browser/media/session/audio_focus_delegate_default_browsertest.cc",
     "../browser/media/session/media_session_impl_browsertest.cc",
     "../browser/media/session/media_session_impl_visibility_browsertest.cc",
     "../browser/media/session/mock_media_session_player_observer.cc",
     "../browser/media/session/mock_media_session_player_observer.h",
     "../browser/memory/memory_coordinator_impl_browsertest.cc",
     "../browser/memory/memory_pressure_controller_impl_browsertest.cc",
     "../browser/message_port_provider_browsertest.cc",
     "../browser/mojo_sandbox_browsertest.cc",
     "../browser/net_info_browsertest.cc",
+    "../browser/payments/payment_app_browsertest.cc",
     "../browser/presentation/presentation_browsertest.cc",
     "../browser/renderer_host/input/composited_scrolling_browsertest.cc",
     "../browser/renderer_host/input/main_thread_event_queue_browsertest.cc",
     "../browser/renderer_host/input/non_blocking_event_browsertest.cc",
     "../browser/renderer_host/input/touch_action_browsertest.cc",
     "../browser/renderer_host/input/touch_input_browsertest.cc",
     "../browser/renderer_host/input/touch_selection_controller_client_aura_browsertest.cc",
     "../browser/renderer_host/render_process_host_browsertest.cc",
     "../browser/renderer_host/render_view_host_browsertest.cc",
     "../browser/renderer_host/render_widget_host_view_browsertest.cc",
@@ skipping 50 matching lines @@
   deps = [
     ":browsertest_support",
     ":content_test_mojo_bindings",
     ":layouttest_support",
     ":test_support",
     ":web_ui_test_mojo_bindings",
     "//base/test:test_support",
     "//components/discardable_memory/client",
     "//components/discardable_memory/common",
     "//components/discardable_memory/service",
+    "//components/payments:payment_app",
     "//content:resources",
     "//content/app:both_for_content_tests",
     "//content/browser:for_content_tests",
     "//content/browser/background_sync:background_sync_proto",
     "//content/child:for_content_tests",
     "//content/gpu",
     "//content/public/browser",
     "//content/public/child",
     "//content/public/common",
     "//content/public/renderer",
@@ skipping 1093 matching lines @@
   if (is_android) {
     deps += [ "//testing/android/native_test:native_test_native_code" ]
   }
 }
 
 group("fuzzers") {
   deps = [
     "//content/test/fuzzer",
   ]
 }