[Payments] Implement web payment app manifest

third_party/WebKit/Source/modules/payments/PaymentInstruments.cpp

Index: third_party/WebKit/Source/modules/payments/PaymentInstruments.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentInstruments.cpp b/third_party/WebKit/Source/modules/payments/PaymentInstruments.cpp
index 2da969b6564dcf4671b54b3554536e00ca35e578..708178950bcba4776ff0e910e39bb444c4eba07c 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentInstruments.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentInstruments.cpp
@@ -46,6 +46,13 @@ bool rejectError(ScriptPromiseResolver* resolver,
       resolver->Reject(DOMException::Create(
           kNotFoundError, "Fetch or decode instrument icon failed"));
       return true;
+    case payments::mojom::blink::PaymentHandlerStatus::
+        FETCH_PAYMENT_APP_INFO_FAILED:
+      resolver->Reject(DOMException::Create(kNotFoundError,
+                                            "Fetch payment app's info "
+                                            "(manifest or the field in the "
+                                            "manifest) failed"));
+      return true;
   }
   NOTREACHED();
   return false;