[Payments] Cache payment manifests.

components/payments/content/android/BUILD.gn

 # Copyright 2016 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("//mojo/public/tools/bindings/mojom.gni")
 
 static_library("android") {
   sources = [
     "component_jni_registrar.cc",
     "component_jni_registrar.h",
     "currency_formatter_android.cc",
     "currency_formatter_android.h",
     "origin_security_checker_android.cc",
     "origin_security_checker_android.h",
     "payment_details_validation_android.cc",
     "payment_details_validation_android.h",
-    "payment_manifest_downloader_android.cc",
-    "payment_manifest_downloader_android.h",
-    "payment_manifest_parser_android.cc",
-    "payment_manifest_parser_android.h",
   ]
   deps = [
     ":jni_headers",
     "//base",
     "//components/payments/content:utils",
     "//components/payments/core",
-    "//components/payments/mojom",
     "//content/public/browser",
     "//net",
   ]
 }
 
 generate_jni("jni_headers") {
   sources = [
     "java/src/org/chromium/components/payments/CurrencyFormatter.java",
     "java/src/org/chromium/components/payments/OriginSecurityChecker.java",
-    "java/src/org/chromium/components/payments/PaymentManifestDownloader.java",
-    "java/src/org/chromium/components/payments/PaymentManifestParser.java",
     "java/src/org/chromium/components/payments/PaymentValidator.java",
   ]
   jni_package = "payments"
 }
 
 android_library("java") {
   java_files = [
     "java/src/org/chromium/components/payments/CurrencyFormatter.java",
     "java/src/org/chromium/components/payments/OriginSecurityChecker.java",
-    "java/src/org/chromium/components/payments/PaymentManifestDownloader.java",
-    "java/src/org/chromium/components/payments/PaymentManifestParser.java",
     "java/src/org/chromium/components/payments/PaymentValidator.java",
   ]
   deps = [
     "//base:base_java",
     "//components/payments/mojom:mojom_java",
-    "//components/payments/mojom:mojom_parser_java",
     "//content/public/android:content_java",
     "//mojo/public/java:bindings_java",
   ]
 }