[Payments] Add PaymentRequest checkout funnel UKMs.

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 8022a997558b7de456b37f93bb1fbc5950818dc8..4d1ddbbd2e1d6b9c560fa7766eb95ca2623cb417 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -3096,6 +3096,10 @@ split_static_library("browser") {
       "password_manager/save_password_infobar_delegate_android.h",
       "password_manager/update_password_infobar_delegate_android.cc",
       "password_manager/update_password_infobar_delegate_android.h",
+      "payments/android/chrome_payments_jni_registrar.cc",
+      "payments/android/chrome_payments_jni_registrar.h",
+      "payments/android/journey_logger_android.cc",
+      "payments/android/journey_logger_android.h",
       "permissions/grouped_permission_infobar_delegate_android.cc",
       "permissions/grouped_permission_infobar_delegate_android.h",
       "permissions/permission_dialog_delegate.cc",
@@ -4172,6 +4176,7 @@ if (is_android) {
       "../android/java/src/org/chromium/chrome/browser/password_manager/AccountChooserDialog.java",
       "../android/java/src/org/chromium/chrome/browser/password_manager/AutoSigninFirstRunDialog.java",
       "../android/java/src/org/chromium/chrome/browser/password_manager/Credential.java",
+      "../android/java/src/org/chromium/chrome/browser/payments/JourneyLogger.java",
       "../android/java/src/org/chromium/chrome/browser/payments/ServiceWorkerPaymentAppBridge.java",
       "../android/java/src/org/chromium/chrome/browser/permissions/PermissionDialogController.java",
       "../android/java/src/org/chromium/chrome/browser/permissions/PermissionDialogDelegate.java",