Implement the "Configure modifier keys" drop-down

chrome/browser/chromeos/language_preferences_unittest.cc

Index: chrome/browser/chromeos/language_preferences_unittest.cc
diff --git a/chrome/browser/chromeos/language_preferences_unittest.cc b/chrome/browser/chromeos/language_preferences_unittest.cc
index 49c5472a13cfc33bacbae28864782d3fe94cc38d..d941e72aa66f3c83e2b58daa975f5647d4c7aa58 100644
--- a/chrome/browser/chromeos/language_preferences_unittest.cc
+++ b/chrome/browser/chromeos/language_preferences_unittest.cc
@@ -101,6 +101,8 @@ TEST(LanguagePreferencesTest, TestDefaultValuesOfMultipleChoicePrefs) {
   EXPECT_TRUE(CheckDefaultValueOfMultipleChoicePrefs(
       kChewingMultipleChoicePrefs, kNumChewingMultipleChoicePrefs));
   EXPECT_TRUE(CheckDefaultValueOfMultipleChoicePrefs(
+      &kXkbModifierMultipleChoicePrefs, 1));
+  EXPECT_TRUE(CheckDefaultValueOfMultipleChoicePrefs(
       &kChewingHsuSelKeyType, 1));
   EXPECT_TRUE(CheckDefaultValueOfMultipleChoicePrefs(
       &kPinyinDoublePinyinSchema, 1));
@@ -114,6 +116,8 @@ TEST(LanguagePreferencesTest, TestDuplicationOfMultipleChoicePrefs) {
   EXPECT_TRUE(CheckDuplicationOfMultipleChoicePrefs(
       kChewingMultipleChoicePrefs, kNumChewingMultipleChoicePrefs));
   EXPECT_TRUE(CheckDuplicationOfMultipleChoicePrefs(
+      &kXkbModifierMultipleChoicePrefs, 1));
+  EXPECT_TRUE(CheckDuplicationOfMultipleChoicePrefs(
       &kChewingHsuSelKeyType, 1));
   EXPECT_TRUE(CheckDuplicationOfMultipleChoicePrefs(
       &kPinyinDoublePinyinSchema, 1));