Use ASCII strings for switch names.

chrome/test/ui/ui_test_suite.h

Index: chrome/test/ui/ui_test_suite.h
diff --git a/chrome/test/ui/ui_test_suite.h b/chrome/test/ui/ui_test_suite.h
index b5771cb00ed7c298bbd92ef16c36d30863b30814..6354d5fa4b6d1d1932ee47f9da9261500f87dccb 100644
--- a/chrome/test/ui/ui_test_suite.h
+++ b/chrome/test/ui/ui_test_suite.h
@@ -27,10 +27,10 @@ class UITestSuite : public ChromeTestSuite {
   base::ProcessHandle crash_service_;
 #endif
 
-  static const wchar_t kUseExistingBrowser[];
-  static const wchar_t kTestTimeout[];
-  static const wchar_t kBatchCount[];
-  static const wchar_t kBatchIndex[];
+  static const char kUseExistingBrowser[];
+  static const char kTestTimeout[];
+  static const char kBatchCount[];
+  static const char kBatchIndex[];
   static const char kGTestTotalShards[];
   static const char kGTestShardIndex[];
 };