Parameterize OnError method.

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

Index: third_party/WebKit/Source/modules/payments/PaymentRequest.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequest.cpp b/third_party/WebKit/Source/modules/payments/PaymentRequest.cpp
index 386f630876a9c71a1349abdb661c91fee410b93f..1ddd6e7f257e022d6670e3b05c2f8bb244c34186 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequest.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequest.cpp
@@ -36,6 +36,7 @@ using blink::mojom::blink::PaymentDetails;
 using blink::mojom::blink::PaymentDetailsModifier;
 using blink::mojom::blink::PaymentDetailsModifierPtr;
 using blink::mojom::blink::PaymentDetailsPtr;
+using blink::mojom::blink::PaymentErrorReason;
 using blink::mojom::blink::PaymentItem;
 using blink::mojom::blink::PaymentItemPtr;
 using blink::mojom::blink::PaymentMethodData;
@@ -372,7 +373,7 @@ ScriptPromise PaymentRequest::show(ScriptState* scriptState)
 
     DCHECK(!m_paymentProvider.is_bound());
     scriptState->domWindow()->frame()->serviceRegistry()->connectToRemoteService(mojo::GetProxy(&m_paymentProvider));
-    m_paymentProvider.set_connection_error_handler(convertToBaseCallback(WTF::bind(&PaymentRequest::OnError, wrapWeakPersistent(this))));
+    m_paymentProvider.set_connection_error_handler(convertToBaseCallback(WTF::bind(&PaymentRequest::OnError, wrapWeakPersistent(this), mojom::blink::PaymentErrorReason::UNKNOWN)));
     m_paymentProvider->SetClient(m_clientBinding.CreateInterfacePtrAndBind());
     m_paymentProvider->Show(mojo::WTFArray<mojom::blink::PaymentMethodDataPtr>::From(m_methodData), mojom::blink::PaymentDetails::From(m_details), mojom::blink::PaymentOptions::From(m_options));
 
@@ -586,14 +587,27 @@ void PaymentRequest::OnPaymentResponse(mojom::blink::PaymentResponsePtr response
     m_showResolver.clear();
 }
 
-void PaymentRequest::OnError()
+void PaymentRequest::OnError(mojo::PaymentErrorReason error)
 {
+    ExceptionCode ec = SyntaxError;
+    String message = "The payment request is cancelled due to unknown reasons.";

[please use gerrit instead, 2016/07/12 15:57:35]

Other error messages in this file do not have a period (.) at the end. Let's not
add it here either.

[pals, 2016/07/13 05:54:27]

Done.

+    switch (error) {
+    case mojom::blink::PaymentErrorReason::USER_CANCEL:
+        message = "User cancelled the payment request.";

[please use gerrit instead, 2016/07/12 15:57:35]

Remove the period.

[pals, 2016/07/13 05:54:27]

Done.

+        break;
+    case mojom::blink::PaymentErrorReason::NOT_SUPPORTED:
+        ec = NotSupportedError;
+        message = "The payment method is not supported.";

[please use gerrit instead, 2016/07/12 15:57:35]

Remove the period.

[pals, 2016/07/13 05:54:27]

Done.

+        break;
+    default:

[please use gerrit instead, 2016/07/12 15:57:35]

Instead of "default", put the "UNKNOWN" enum value here. This way the compiler
will ensure that you've handled all enum values.

[pals, 2016/07/13 05:54:27]

Done.

+        break;
+    }
     if (m_completeResolver)
-        m_completeResolver->reject(DOMException::create(SyntaxError, "Request cancelled"));
+        m_completeResolver->reject(DOMException::create(ec, message));
     if (m_showResolver)
-        m_showResolver->reject(DOMException::create(SyntaxError, "Request cancelled"));
+        m_showResolver->reject(DOMException::create(ec, message));
     if (m_abortResolver)
-        m_abortResolver->reject(DOMException::create(SyntaxError, "Request cancelled"));
+        m_abortResolver->reject(DOMException::create(ec, message));
     clearResolversAndCloseMojoConnection();
 }