[flutter_runner] Plumb Flutter component arguments to the Dart entrypoint

Change-Id: Ibcd4a110b84805af02a436a2a5bcf2cf3d2029a4
diff --git a/runtime/flutter_runner/component.cc b/runtime/flutter_runner/component.cc
index 5daf7de..a59ea12 100644
--- a/runtime/flutter_runner/component.cc
+++ b/runtime/flutter_runner/component.cc
@@ -89,8 +89,7 @@
 
   // LaunchInfo::arguments optional.
   if (auto& arguments = launch_info.arguments) {
-    settings_ = flutter::SettingsFromCommandLine(
-        fml::CommandLineFromIterators(arguments->begin(), arguments->end()));
+    settings_.dart_entrypoint_args = arguments;
   }
 
   // Determine /pkg/data directory from StartupInfo.