Remove ibus-hangul support.

chrome/browser/chromeos/preferences.cc

Index: chrome/browser/chromeos/preferences.cc
diff --git a/chrome/browser/chromeos/preferences.cc b/chrome/browser/chromeos/preferences.cc
index 3314427bd31ef08660cc119f9f68f42541ff7b5c..40571d83f037327d1ba6e7eac6b9cd59882376af 100644
--- a/chrome/browser/chromeos/preferences.cc
+++ b/chrome/browser/chromeos/preferences.cc
@@ -110,10 +110,6 @@ void Preferences::RegisterUserPrefs(PrefService* prefs) {
       prefs::kLanguageHangulKeyboard,
       language_prefs::kHangulKeyboardNameIDPairs[0].keyboard_id,
       PrefService::SYNCABLE_PREF);
-  prefs->RegisterStringPref(prefs::kLanguageHangulHanjaKeys,
-                            language_prefs::kHangulHanjaKeys,
-                            // Don't sync the pref as it's not user-configurable
-                            PrefService::UNSYNCABLE_PREF);
   prefs->RegisterStringPref(prefs::kLanguageHangulHanjaBindingKeys,
                             language_prefs::kHangulHanjaBindingKeys,
                             // Don't sync the pref as it's not user-configurable
@@ -237,8 +233,6 @@ void Preferences::Init(PrefService* prefs) {
         language_prefs::kChewingIntegerPrefs[i].pref_name, prefs, this);
   }
   language_hangul_keyboard_.Init(prefs::kLanguageHangulKeyboard, prefs, this);
-  language_hangul_hanja_keys_.Init(
-      prefs::kLanguageHangulHanjaKeys, prefs, this);
   language_hangul_hanja_binding_keys_.Init(
       prefs::kLanguageHangulHanjaBindingKeys, prefs, this);
   for (size_t i = 0; i < language_prefs::kNumPinyinBooleanPrefs; ++i) {
@@ -406,11 +400,6 @@ void Preferences::NotifyPrefChanged(const std::string* pref_name) {
                             language_prefs::kHangulKeyboardConfigName,
                             language_hangul_keyboard_.GetValue());
   }
-  if (!pref_name || *pref_name == prefs::kLanguageHangulHanjaKeys) {
-    SetLanguageConfigString(language_prefs::kHangulSectionName,
-                            language_prefs::kHangulHanjaKeysConfigName,
-                            language_hangul_hanja_keys_.GetValue());
-  }
   if (!pref_name || *pref_name == prefs::kLanguageHangulHanjaBindingKeys) {
     SetLanguageConfigString(language_prefs::kHangulSectionName,
                             language_prefs::kHangulHanjaBindingKeysConfigName,