[Payment Request] Refactors selector view controllers

ios/chrome/browser/payments/BUILD.gn

Index: ios/chrome/browser/payments/BUILD.gn
diff --git a/ios/chrome/browser/payments/BUILD.gn b/ios/chrome/browser/payments/BUILD.gn
index 4538a0168c8d03843e7ac1f74c64572b78693fc9..e353acd45ebd0f1114de91d444e137c7b8c6673a 100644
--- a/ios/chrome/browser/payments/BUILD.gn
+++ b/ios/chrome/browser/payments/BUILD.gn
@@ -41,9 +41,8 @@ source_set("payments") {
     "payment_request_view_controller_actions.h",
     "shipping_address_selection_coordinator.h",
     "shipping_address_selection_coordinator.mm",
-    "shipping_address_selection_view_controller.h",
-    "shipping_address_selection_view_controller.mm",
-    "shipping_address_selection_view_controller_actions.h",
+    "shipping_address_selection_mediator.h",
+    "shipping_address_selection_mediator.mm",
     "shipping_option_selection_coordinator.h",
     "shipping_option_selection_coordinator.mm",
     "shipping_option_selection_view_controller.h",
@@ -139,7 +138,6 @@ source_set("unit_tests") {
     "payment_request_unittest.mm",
     "payment_request_view_controller_unittest.mm",
     "shipping_address_selection_coordinator_unittest.mm",
-    "shipping_address_selection_view_controller_unittest.mm",
     "shipping_option_selection_coordinator_unittest.mm",
     "shipping_option_selection_view_controller_unittest.mm",
   ]