[Payments] Normalize shipping address change on Desktop

components/payments/content/payment_response_helper.h

Index: components/payments/content/payment_response_helper.h
diff --git a/components/payments/content/payment_response_helper.h b/components/payments/content/payment_response_helper.h
index 83a66aa6ab2cc729c2044ff6e3540c9630375161..d4711f63399a9e0464169af2fcb0586e6dfa3935 100644
--- a/components/payments/content/payment_response_helper.h
+++ b/components/payments/content/payment_response_helper.h
@@ -43,7 +43,7 @@ class PaymentResponseHelper : public PaymentInstrument::Delegate,
   // Returns a new mojo PaymentAddress based on the specified
   // |profile| and |app_locale|.
   static mojom::PaymentAddressPtr GetMojomPaymentAddressFromAutofillProfile(
-      const autofill::AutofillProfile* const profile,
+      const autofill::AutofillProfile& profile,
       const std::string& app_locale);
 
   // PaymentInstrument::Delegate
@@ -74,6 +74,8 @@ class PaymentResponseHelper : public PaymentInstrument::Delegate,
   // Not owned, can be null (dependent on the spec).
   autofill::AutofillProfile* selected_contact_profile_;
 
+  // A normalized copy of the shipping address, which will be included in the
+  // PaymentResponse.
   autofill::AutofillProfile shipping_address_;
 
   // Instrument Details.