[Payment Request] Moves PaymentRequest into the payments namespace

ios/chrome/browser/ui/payments/address_edit_coordinator.h

Index: ios/chrome/browser/ui/payments/address_edit_coordinator.h
diff --git a/ios/chrome/browser/ui/payments/address_edit_coordinator.h b/ios/chrome/browser/ui/payments/address_edit_coordinator.h
index f6f8a3b6d598c9b7a5425fa6e3f08d093bb232c8..a09a4696fd93fc88a335136acdba73739e2e7a3b 100644
--- a/ios/chrome/browser/ui/payments/address_edit_coordinator.h
+++ b/ios/chrome/browser/ui/payments/address_edit_coordinator.h
@@ -13,7 +13,9 @@ namespace autofill {
 class AutofillProfile;
 }  // namespace autofill
 
+namespace payments {
 class PaymentRequest;
+}  // namespace payments
 
 @class AddressEditCoordinator;
 
@@ -48,7 +50,7 @@ class PaymentRequest;
 // The PaymentRequest object owning an instance of web::PaymentRequest as
 // provided by the page invoking the Payment Request API. This pointer is not
 // owned by this class and should outlive it.
-@property(nonatomic, assign) PaymentRequest* paymentRequest;
+@property(nonatomic, assign) payments::PaymentRequest* paymentRequest;
 
 // The delegate to be notified when the user returns or finishes creating or
 // editing an address.