PaymentHandler: Merge PaymentAppRequest and PaymentRequestEvent.

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

Index: third_party/WebKit/Source/modules/payments/PaymentRequestEvent.h
diff --git a/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.h b/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.h
index b80f03a3f832b1674d56c88e83e9a5a8021f9082..591e008bc816b3848e0057a71709e28a09739f5a 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentRequestEvent.h
@@ -31,7 +31,14 @@ class MODULES_EXPORT PaymentRequestEvent final : public ExtendableEvent {
 
   const AtomicString& InterfaceName() const override;
 
-  void appRequest(PaymentAppRequest&) const;
+  const String& topLevelOrigin() const;
+  const String& paymentRequestOrigin() const;
+  const String& paymentRequestId() const;
+  const HeapVector<PaymentMethodData>& methodData() const;
+  void total(PaymentItem& value) const;
+  const HeapVector<PaymentDetailsModifier>& modifiers() const;
+  const String& instrumentKey() const;
+
   void respondWith(ScriptState*, ScriptPromise, ExceptionState&);
 
   DECLARE_VIRTUAL_TRACE();
@@ -41,7 +48,15 @@ class MODULES_EXPORT PaymentRequestEvent final : public ExtendableEvent {
                       const PaymentAppRequest&,
                       RespondWithObserver*,
                       WaitUntilObserver*);
-  PaymentAppRequest app_request_;
+
+  String top_level_origin_;
+  String payment_request_origin_;
+  String payment_request_id_;
+  HeapVector<PaymentMethodData> method_data_;
+  PaymentItem total_;
+  HeapVector<PaymentDetailsModifier> modifiers_;
+  String instrument_key_;
+
   Member<RespondWithObserver> observer_;
 };