** DO NOT COMMIT** Only for test

content/browser/payments/payment_app_browsertest.cc

Index: content/browser/payments/payment_app_browsertest.cc
diff --git a/content/browser/payments/payment_app_browsertest.cc b/content/browser/payments/payment_app_browsertest.cc
index a174110033c65580ab1355b59124cb9f18d8f594..68e55112b0498162e4dffa57d615c4d04adedfac 100644
--- a/content/browser/payments/payment_app_browsertest.cc
+++ b/content/browser/payments/payment_app_browsertest.cc
@@ -21,6 +21,15 @@
 namespace content {
 namespace {
 
+using ::payments::mojom::PaymentAppRequest;
+using ::payments::mojom::PaymentAppRequestPtr;
+using ::payments::mojom::PaymentAppResponsePtr;
+using ::payments::mojom::PaymentCurrencyAmount;
+using ::payments::mojom::PaymentDetailsModifier;
+using ::payments::mojom::PaymentDetailsModifierPtr;
+using ::payments::mojom::PaymentItem;
+using ::payments::mojom::PaymentMethodData;
+
 void GetAllPaymentAppsCallback(const base::Closure& done_callback,
                                PaymentAppProvider::PaymentApps* out_apps,
                                PaymentAppProvider::PaymentApps apps) {
@@ -104,6 +113,12 @@ class PaymentAppBrowserTest : public ContentBrowserTest {
     app_request->total = payments::mojom::PaymentItem::New();
     app_request->total->amount = payments::mojom::PaymentCurrencyAmount::New();
 
+    PaymentDetailsModifierPtr modifier = PaymentDetailsModifier::New();
+    modifier->total = payments::mojom::PaymentItem::New();
+    modifier->total->amount = payments::mojom::PaymentCurrencyAmount::New();
+    modifier->method_data = payments::mojom::PaymentMethodData::New();
+    app_request->modifiers.push_back(std::move(modifier));
+
     base::RunLoop run_loop;
     payments::mojom::PaymentAppResponsePtr response;
     PaymentAppProvider::GetInstance()->InvokePaymentApp(