[Payments] Implement web payment app manifest

content/public/browser/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/ui.gni")
 
 # See //content/BUILD.gn for how this works.
 group("browser") {
   if (is_component_build) {
     public_deps = [
@@ skipping 229 matching lines @@
     "speech_recognition_session_config.cc",
     "speech_recognition_session_config.h",
     "speech_recognition_session_context.cc",
     "speech_recognition_session_context.h",
     "speech_recognition_session_preamble.cc",
     "speech_recognition_session_preamble.h",
     "ssl_host_state_delegate.h",
     "ssl_status.cc",
     "ssl_status.h",
     "storage_partition.h",
+    "stored_payment_app.cc",
+    "stored_payment_app.h",
     "stored_payment_instrument.cc",
     "stored_payment_instrument.h",
     "stream_handle.h",
     "stream_info.cc",
     "stream_info.h",
     "trace_uploader.h",
     "tracing_controller.h",
     "tracing_delegate.cc",
     "tracing_delegate.h",
     "url_data_source.cc",
@@ skipping 90 matching lines @@
     ]
   }
 
   if (is_chromeos) {
     sources += [
       "arc_tracing_agent.cc",
       "arc_tracing_agent.h",
     ]
   }
 }