Provide shipping in PaymentRequest response

third_party/WebKit/Source/modules/payments/PaymentsValidators.h

Index: third_party/WebKit/Source/modules/payments/PaymentsValidators.h
diff --git a/third_party/WebKit/Source/modules/payments/PaymentsValidators.h b/third_party/WebKit/Source/modules/payments/PaymentsValidators.h
index 9aba401570bf121f8c3d8d9a1b06480ed6a410ee..672f3bed58bb9599cedd10c4a9d275bbba7a281d 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentsValidators.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentsValidators.h
@@ -6,6 +6,7 @@
 #define PaymentsValidators_h
 
 #include "modules/ModulesExport.h"
+#include "public/platform/modules/payments/payment_request.mojom-blink.h"
 #include "wtf/Allocator.h"
 #include "wtf/text/WTFString.h"
 
@@ -29,6 +30,13 @@ public:
 
     // Returns true if |code| is a valid ISO 15924 script code.
     static bool isValidScriptCodeFormat(const String& code, String* optionalErrorMessage);
+
+    // Returns true if the shipping address is valid:
+    //  - Has a valid region code
+    //  - Has a valid language code, if any.
+    //  - Has a valid script code, if any.
+    // A script code should be present only if language code is present.
+    static bool isValidShippingAddress(const mojom::blink::ShippingAddressPtr&, String* optionalErrorMessage);
 };
 
 } // namespace blink