Do not parse JSON in the browser.

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

Index: third_party/WebKit/Source/modules/payments/PaymentRequest.h
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequest.h b/third_party/WebKit/Source/modules/payments/PaymentRequest.h
index 555e7b6b3743e877d61efa5a2caa0406e046d3d5..308df98ae9959856a6fbe6011536f610a3e0fa3c 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequest.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequest.h
@@ -58,13 +58,6 @@ class MODULES_EXPORT PaymentRequest final
 
   virtual ~PaymentRequest();
 
-  struct MethodData {
-    MethodData(const Vector<String>& methods, const String& data)
-        : supportedMethods(methods), stringifiedData(data) {}
-    Vector<String> supportedMethods;
-    String stringifiedData;
-  };
-
   ScriptPromise show(ScriptState*);
   ScriptPromise abort(ScriptState*);