Upstream Settings.bundle used by experimental_flags.{h,mm}.

ios/chrome/browser/BUILD.gn

Index: ios/chrome/browser/BUILD.gn
diff --git a/ios/chrome/browser/BUILD.gn b/ios/chrome/browser/BUILD.gn
index eac37946284f4bcf33c726a8371958dec0cd5bae..7f2519574f0c10d3df00c036aeedfa13bcdca06a 100644
--- a/ios/chrome/browser/BUILD.gn
+++ b/ios/chrome/browser/BUILD.gn
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/features.gni")
+import("//build/config/ios/rules.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 declare_args() {
@@ -218,6 +219,16 @@ source_set("about_flags") {
   ]
 }
 
+bundle_data("settings_resources") {
+  sources = [
+    "resources/Settings.bundle/Experimental.plist",
+    "resources/Settings.bundle/Root.plist",
+  ]
+  outputs = [
+    "{{bundle_resources_dir}}/Settings.bundle/{{source_file_part}}",
+  ]
+}
+
 source_set("unit_tests") {
   testonly = true
   sources = [