[WebPayments] Move views-specific code to c/b/ui/views/

chrome/browser/payments/payment_request_impl.h

Index: chrome/browser/payments/payment_request_impl.h
diff --git a/chrome/browser/payments/payment_request_impl.h b/chrome/browser/payments/payment_request_impl.h
index 2057aeb587fb97501ff7e52c30eb2193e72ccd63..39ee68f5398e5a6ac3122696408dc08051604658 100644
--- a/chrome/browser/payments/payment_request_impl.h
+++ b/chrome/browser/payments/payment_request_impl.h
@@ -14,8 +14,6 @@ class WebContents;
 
 namespace payments {
 
-class PaymentRequestDialog;
-
 class PaymentRequestImpl : payments::mojom::PaymentRequest,
                            public base::RefCounted<PaymentRequestImpl> {
  public:
@@ -34,15 +32,19 @@ class PaymentRequestImpl : payments::mojom::PaymentRequest,
   void Complete(payments::mojom::PaymentComplete result) override {}
   void CanMakePayment() override {}
 
+  void Cancel();
   void OnError();
 
+  content::WebContents* web_contents() { return web_contents_; }
+
  private:
   friend class base::RefCounted<PaymentRequestImpl>;
   ~PaymentRequestImpl() override;
 
   content::WebContents* web_contents_;
   mojo::Binding<payments::mojom::PaymentRequest> binding_;
-  PaymentRequestDialog* dialog_;
+  payments::mojom::PaymentRequestClientPtr client_;
+
   DISALLOW_COPY_AND_ASSIGN(PaymentRequestImpl);
 };