Remove PaymentResponse.totalAmount according to latest spec

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

Index: third_party/WebKit/Source/modules/payments/PaymentResponse.cpp
diff --git a/third_party/WebKit/Source/modules/payments/PaymentResponse.cpp b/third_party/WebKit/Source/modules/payments/PaymentResponse.cpp
index 139e9cf7e0f26a8328a15a7930fdf9fb6313c2c5..37b267bb42ffbe7dd1af149058dfe4020a531570 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentResponse.cpp
+++ b/third_party/WebKit/Source/modules/payments/PaymentResponse.cpp
@@ -9,26 +9,10 @@
 #include "modules/payments/PaymentCompleter.h"
 #include "wtf/Assertions.h"
 
-namespace mojo {
-
-template <>
-struct TypeConverter<blink::PaymentCurrencyAmount, blink::mojom::blink::PaymentCurrencyAmount> {
-    static blink::PaymentCurrencyAmount Convert(const blink::mojom::blink::PaymentCurrencyAmount& input)
-    {
-        blink::PaymentCurrencyAmount output;
-        output.setCurrency(input.currency);
-        output.setValue(input.value);
-        return output;
-    }
-};
-
-} // namespace mojo
-
 namespace blink {
 
 PaymentResponse::PaymentResponse(mojom::blink::PaymentResponsePtr response, PaymentCompleter* paymentCompleter)
     : m_methodName(response->method_name)
-    , m_totalAmount(response->total_amount->To<PaymentCurrencyAmount>())
     , m_stringifiedDetails(response->stringified_details)
     , m_shippingAddress(response->shipping_address ? new PaymentAddress(std::move(response->shipping_address)) : nullptr)
     , m_shippingOption(response->shipping_option)