Use ASCII strings for switch names.

chrome/browser/locale_tests_uitest.cc

Index: chrome/browser/locale_tests_uitest.cc
diff --git a/chrome/browser/locale_tests_uitest.cc b/chrome/browser/locale_tests_uitest.cc
index 808ecaec20e042d266e5e7de75f3b2087beaf6f3..c403b6e0b7b30b1dca43096a7f0dc85d22e2434f 100644
--- a/chrome/browser/locale_tests_uitest.cc
+++ b/chrome/browser/locale_tests_uitest.cc
@@ -29,7 +29,7 @@ class LocaleTestsBase : public UITest {
 class LocaleTestsDa : public LocaleTestsBase {
  public:
   LocaleTestsDa() : LocaleTestsBase() {
-    launch_arguments_.AppendSwitchWithValue(L"lang", L"da");
+    launch_arguments_.AppendSwitchWithValue("lang", "da");
 
     // Linux doesn't use --lang, it only uses environment variables to set the
     // language.
@@ -43,7 +43,7 @@ class LocaleTestsDa : public LocaleTestsBase {
 class LocaleTestsHe : public LocaleTestsBase {
  public:
   LocaleTestsHe() : LocaleTestsBase() {
-    launch_arguments_.AppendSwitchWithValue(L"lang", L"he");
+    launch_arguments_.AppendSwitchWithValue("lang", "he");
 #if defined(OS_LINUX)
     old_lc_all_ = getenv("LC_ALL");
     setenv("LC_ALL", "he_IL.UTF-8", 1);
@@ -54,7 +54,7 @@ class LocaleTestsHe : public LocaleTestsBase {
 class LocaleTestsZhTw : public LocaleTestsBase {
  public:
   LocaleTestsZhTw() : LocaleTestsBase() {
-    launch_arguments_.AppendSwitchWithValue(L"lang", L"zh-TW");
+    launch_arguments_.AppendSwitchWithValue("lang", "zh-TW");
 #if defined(OS_LINUX)
     old_lc_all_ = getenv("LC_ALL");
     setenv("LC_ALL", "zh_TW.UTF-8", 1);