[ObjC ARC] Converts ios/chrome/browser/ui/settings:settings_arc_transition to ARC.

ios/chrome/browser/ui/settings/BUILD.gn

Index: ios/chrome/browser/ui/settings/BUILD.gn
diff --git a/ios/chrome/browser/ui/settings/BUILD.gn b/ios/chrome/browser/ui/settings/BUILD.gn
index edbc09635d69c04bdeb0200599861dce438b765d..a6d34268b6cbdd3849efec76335ffc2ba8e02598 100644
--- a/ios/chrome/browser/ui/settings/BUILD.gn
+++ b/ios/chrome/browser/ui/settings/BUILD.gn
@@ -49,6 +49,27 @@ source_set("settings_arc") {
     "block_popups_collection_view_controller.mm",
     "clear_browsing_data_collection_view_controller.h",
     "clear_browsing_data_collection_view_controller.mm",
+    "content_settings_collection_view_controller.h",
+    "content_settings_collection_view_controller.mm",
+    "contextual_search_collection_view_controller.h",
+    "contextual_search_collection_view_controller.mm",
+    "dataplan_usage_collection_view_controller.h",
+    "dataplan_usage_collection_view_controller.mm",
+    "do_not_track_collection_view_controller.h",
+    "do_not_track_collection_view_controller.mm",
+    "handoff_collection_view_controller.h",
+    "handoff_collection_view_controller.mm",
+    "import_data_collection_view_controller.h",
+    "import_data_collection_view_controller.mm",
+    "material_cell_catalog_view_controller.h",
+    "material_cell_catalog_view_controller.mm",
+    "native_apps_collection_view_controller.h",
+    "native_apps_collection_view_controller.mm",
+    "native_apps_collection_view_controller_private.h",
+    "password_details_collection_view_controller.h",
+    "password_details_collection_view_controller.mm",
+    "physical_web_collection_view_controller.h",
+    "physical_web_collection_view_controller.mm",
   ]
   deps = [
     ":resources",
@@ -149,27 +170,6 @@ source_set("settings_arc") {
 
 source_set("settings") {
   sources = [
-    "content_settings_collection_view_controller.h",
-    "content_settings_collection_view_controller.mm",
-    "contextual_search_collection_view_controller.h",
-    "contextual_search_collection_view_controller.mm",
-    "dataplan_usage_collection_view_controller.h",
-    "dataplan_usage_collection_view_controller.mm",
-    "do_not_track_collection_view_controller.h",
-    "do_not_track_collection_view_controller.mm",
-    "handoff_collection_view_controller.h",
-    "handoff_collection_view_controller.mm",
-    "import_data_collection_view_controller.h",
-    "import_data_collection_view_controller.mm",
-    "material_cell_catalog_view_controller.h",
-    "material_cell_catalog_view_controller.mm",
-    "native_apps_collection_view_controller.h",
-    "native_apps_collection_view_controller.mm",
-    "native_apps_collection_view_controller_private.h",
-    "password_details_collection_view_controller.h",
-    "password_details_collection_view_controller.mm",
-    "physical_web_collection_view_controller.h",
-    "physical_web_collection_view_controller.mm",
     "privacy_collection_view_controller.h",
     "privacy_collection_view_controller.mm",
     "reauthentication_module.h",