Remove uses of Options from utils directory.

utils/tests/string_encoding/benchmark_runner.dart

Index: utils/tests/string_encoding/benchmark_runner.dart
diff --git a/utils/tests/string_encoding/benchmark_runner.dart b/utils/tests/string_encoding/benchmark_runner.dart
index f29c4f994d16ea86d07a45583c2d5df6af2965d7..0f5495607a9c7c3a138425acf76597461134a625 100644
--- a/utils/tests/string_encoding/benchmark_runner.dart
+++ b/utils/tests/string_encoding/benchmark_runner.dart
@@ -196,10 +196,11 @@ class TestReport {
 }
 
 class Runner {
+  static List<String> arguments;  // Set by main.
+
   static bool runTest(String testId) {
-    Options opts = new Options();
-    return opts.arguments.length == 0 ||
-        opts.arguments.any((String id) => id == testId);
+    return arguments.length == 0 ||
+        arguments.any((String id) => id == testId);
   }
 }