[Payments] Cache payment manifests.

chrome/browser/payments/android/chrome_payments_jni_registrar.cc

 // Copyright 2017 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.
 
 #include "chrome/browser/payments/android/chrome_payments_jni_registrar.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
 #include "base/macros.h"
 #include "chrome/browser/payments/android/journey_logger_android.h"
+#include "chrome/browser/payments/android/payment_manifest_web_data_service_android.h"
 #include "chrome/browser/payments/android/ssl_validity_checker_android.h"
 
 namespace payments {
 namespace android {
 
 static base::android::RegistrationMethod kChromePaymentsRegisteredMethods[] = {
     {"JourneyLogger", JourneyLoggerAndroid::Register},
     {"SslValidityChecker", RegisterSslValidityChecker},
+    {"PaymentManifestWebDataService",
+     PaymentManifestWebDataServiceAndroid::Register},
 };
 
 bool RegisterChromePayments(JNIEnv* env) {
   return base::android::RegisterNativeMethods(
       env, kChromePaymentsRegisteredMethods,
       arraysize(kChromePaymentsRegisteredMethods));
 }
 
 }  // namespace android
 }  // namespace payments