Break cyclic dependency between c/b/chromeos and c/b/chromeos/input_method...

chrome/browser/chromeos/language_preferences.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
+#include "chrome/browser/chromeos/input_method/input_method_constants.h"
 #include "chrome/browser/chromeos/language_preferences.h"
 #include "chrome/common/pref_names.h"
 #include "grit/generated_resources.h"
 
 namespace chromeos {
 namespace language_prefs {
 
 // ---------------------------------------------------------------------------
-// For ibus-daemon
-// ---------------------------------------------------------------------------
-const char kGeneralSectionName[] = "general";
-const char kPreloadEnginesConfigName[] = "preload_engines";
-
-// ---------------------------------------------------------------------------
 // For Traditional Chinese input method (ibus-mozc-chewing)
 // ---------------------------------------------------------------------------
-const char kChewingSectionName[] = "engine/Chewing";
 
 // We have to sync the |ibus_config_name|s with those in
 // ibus-chewing/files/src/Config.cc.
 const LanguageBooleanPrefs kChewingBooleanPrefs[] = {
-  { prefs::kLanguageChewingAutoShiftCur, false, "autoShiftCur",
+  { prefs::kLanguageChewingAutoShiftCur, false, input_method::kChewingAutoShiftCur,

[Seigo Nonaka, 2012/12/17 12:29:45]

<=80 characters.

     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_AUTO_SHIFT_CUR,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguageChewingAddPhraseDirection, false, "addPhraseDirection",
+  { prefs::kLanguageChewingAddPhraseDirection, false, input_method::kChewingAddPhraseDirection,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_ADD_PHRASE_DIRECTION,
     PrefService::SYNCABLE_PREF },
   /* Temporarily disabled. (crosbug.com/14185)
   { prefs::kLanguageChewingEasySymbolInput, true, "easySymbolInput",
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_EASY_SYMBOL_INPUT,
     PrefService::SYNCABLE_PREF },
   */
-  { prefs::kLanguageChewingEscCleanAllBuf, false, "escCleanAllBuf",
+  { prefs::kLanguageChewingEscCleanAllBuf, false, input_method::kChewingEscCleanAllBuf,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_ESC_CLEAN_ALL_BUF,
     PrefService::SYNCABLE_PREF },
   { prefs::kLanguageChewingForceLowercaseEnglish, false,
     "forceLowercaseEnglish",
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_FORCE_LOWER_CASE_ENGLISH,
     PrefService::SYNCABLE_PREF },
   /* Temporarily disabled. (crosbug.com/14185)
-  { prefs::kLanguageChewingPlainZhuyin, false, "plainZhuyin",
+  { prefs::kLanguageChewingPlainZhuyin, false, input_method::kChewingPlainZhuyin,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_PLAIN_ZHUYIN,
     PrefService::SYNCABLE_PREF },
   */
-  { prefs::kLanguageChewingPhraseChoiceRearward, true, "phraseChoiceRearward",
+  { prefs::kLanguageChewingPhraseChoiceRearward, true, input_method::kChewingPhraseChoiceRearward,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_PHRASE_CHOICE_REARWARD,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguageChewingSpaceAsSelection, true, "spaceAsSelection",
+  { prefs::kLanguageChewingSpaceAsSelection, true, input_method::kChewingSpaceAsSelection,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_SPACE_AS_SELECTION,
     PrefService::SYNCABLE_PREF },
 };
 COMPILE_ASSERT(kNumChewingBooleanPrefs == arraysize(kChewingBooleanPrefs),
                TheSizeShouldMatch);
 
 const LanguageIntegerRangePreference kChewingIntegerPrefs[] = {
-  { prefs::kLanguageChewingMaxChiSymbolLen, 20, 8, 40, "maxChiSymbolLen",
+  { prefs::kLanguageChewingMaxChiSymbolLen, 20, 8, 40, input_method::kChewingMaxChiSymbolLen,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_MAX_CHI_SYMBOL_LEN,
     PrefService::SYNCABLE_PREF
   },
-  { prefs::kLanguageChewingCandPerPage, 10, 8, 10, "candPerPage",
+  { prefs::kLanguageChewingCandPerPage, 10, 8, 10, input_method::kChewingCandPerPage,
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SETTING_CAND_PER_PAGE,
     PrefService::SYNCABLE_PREF
   },
 };
 COMPILE_ASSERT(kNumChewingIntegerPrefs == arraysize(kChewingIntegerPrefs),
                TheSizeShouldMatch);
 
 const LanguageMultipleChoicePreference<const char*>
     kChewingMultipleChoicePrefs[] = {
   { prefs::kLanguageChewingKeyboardType,
-    "default",
-    "KBType",
-    {{ "default",
+    input_method::kChewingKeyboardTypeDefault,
+    input_method::kChewingKeyboardType,
+    {{ input_method::kChewingKeyboardTypeDefault,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_DEFAULT },
-     { "hsu", IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_HSU },
-     { "ibm", IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_IBM },
-     { "gin_yieh",
+     { input_method::kChewingKeyboardTypeHsu, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_HSU },
+     { input_method::kChewingKeyboardTypeIbm, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_IBM },
+     { input_method::kChewingKeyboardTypeGinYieh,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_GIN_YIEH },
-     { "eten", IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_ETEN },
-     { "eten26", IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_ETEN26 },
-     { "dvorak", IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_DVORAK },
-     { "dvorak_hsu",
+     { input_method::kChewingKeyboardTypeEten, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_ETEN },
+     { input_method::kChewingKeyboardTypeEten26, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_ETEN26 },
+     { input_method::kChewingKeyboardTypeDvorak, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_DVORAK },
+     { input_method::kChewingKeyboardTypeDvorakHsu,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_DVORAK_HSU },
-     { "dachen_26",
+     { input_method::kChewingKeyboardTypeDachen26,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_DACHEN_26 },
-     { "hanyu", IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_HANYU }},
+     { input_method::kChewingKeyboardTypeHanyu, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE_HANYU }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_KEYBOARD_TYPE,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageChewingSelKeys,
-    "1234567890",
-    "selKeys",
-    {{ "1234567890",
+    input_method::kChewingSelKeys1234567890,
+    input_method::kChewingSelKeys,
+    {{ input_method::kChewingSelKeys1234567890,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_1234567890 },
-     { "asdfghjkl;",
+     { input_method::kChewingSelKeysAsdfghjkl_,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_ASDFGHJKLS },
-     { "asdfzxcv89",
+     { input_method::kChewingSelKeysAsdfzxcv89,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_ASDFZXCV89 },
-     { "asdfjkl789",
+     { input_method::kChewingSelKeysAsdfjkl789,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_ASDFJKL789 },
-     { "aoeu;qjkix",
+     { input_method::kChewingSelKeysAoeu_qjkix,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_AOEUSQJKIX },
-     { "aoeuhtnsid",
+     { input_method::kChewingSelKeysAoeuhtnsid,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_AOEUHTNSID },
-     { "aoeuidhtns",
+     { input_method::kChewingSelKeysAoeuidhtns,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_AOEUIDHTNS },
-     { "1234qweras",
+     { input_method::kChewingSelKeys1234qweras,
        IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS_1234QWERAS }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_SEL_KEYS,
     PrefService::SYNCABLE_PREF,
   },
 };
 COMPILE_ASSERT(kNumChewingMultipleChoicePrefs ==
                arraysize(kChewingMultipleChoicePrefs),
                TheSizeShouldMatch);
 
 const LanguageMultipleChoicePreference<int> kChewingHsuSelKeyType = {
   prefs::kLanguageChewingHsuSelKeyType,
-  1,
-  "hsuSelKeyType",
-  {{ 1, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_HSU_SEL_KEY_TYPE_1 },
-   { 2, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_HSU_SEL_KEY_TYPE_2 }},
+  input_method::kChewingHsuSelKeyType1,
+  input_method::kChewingHsuSelKeyType,
+  {{ input_method::kChewingHsuSelKeyType1, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_HSU_SEL_KEY_TYPE_1 },
+   { input_method::kChewingHsuSelKeyType2, IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_HSU_SEL_KEY_TYPE_2 }},
   IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_HSU_SEL_KEY_TYPE,
   PrefService::SYNCABLE_PREF,
 };
 
 // ---------------------------------------------------------------------------
 // For Korean input method (ibus-mozc-hangul)
 // ---------------------------------------------------------------------------
-const char kHangulSectionName[] = "engine/Hangul";
-const char kHangulKeyboardConfigName[] = "HangulKeyboard";
 
-const char kHangulHanjaBindingKeysConfigName[] = "HanjaKeyBindings";
 // Mozc-hangul treats Hangul_Hanja key as hanja key event even if it is not set.
 // We add Control+9 since F9 key is reserved by the window manager.
 // TODO(nona): Hanja keys are not configurable yet (and we're not sure if it
 // should.)
 const char kHangulHanjaBindingKeys[] = "F9,Ctrl 9";
 
 const HangulKeyboardNameIDPair kHangulKeyboardNameIDPairs[] = {
   // We have to sync the |keyboard_id|s with those in libhangul.
-  { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_2_SET, "2" },
+  { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_2_SET, input_method::kHangulKeyboard2Set },
   { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_3_SET_FINAL,
-    "3f" },
-  { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_3_SET_390, "39" },
+    input_method::kHangulKeyboard3SetFinal },
+  { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_3_SET_390, input_method::kHangulKeyboard3Set390 },
   { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_3_SET_NO_SHIFT,
-    "3s" },
-  { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_ROMAJA, "ro" },
+    input_method::kHangulKeyboard3SetNoShift },
+  { IDS_OPTIONS_SETTINGS_LANGUAGES_HANGUL_SETTINGS_KEYBOARD_ROMAJA, input_method::kHangulKeyboardRomaja },
   // We don't support "Sebeolsik 2 set" keyboard.
 };
 COMPILE_ASSERT(kNumHangulKeyboardNameIDPairs ==
                arraysize(kHangulKeyboardNameIDPairs),
                TheSizeShouldMatch);
 
 // ---------------------------------------------------------------------------
 // For Simplified Chinese input method (ibus-mozc-pinyin)
 // ---------------------------------------------------------------------------
-const char kPinyinSectionName[] = "engine/Pinyin";
 
 // We have to sync the |ibus_config_name|s with those in
 // ibus-mozc-pinyin/files/languages/pinyin/unix/ibus/config_updater.cc.
 const LanguageBooleanPrefs kPinyinBooleanPrefs[] = {
-  { prefs::kLanguagePinyinCorrectPinyin, true, "CorrectPinyin",
+  { prefs::kLanguagePinyinCorrectPinyin, true, input_method::kPinyinCorrectPinyin,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_CORRECT_PINYIN,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinFuzzyPinyin, false, "FuzzyPinyin",
+  { prefs::kLanguagePinyinFuzzyPinyin, false, input_method::kPinyinFuzzyPinyin,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_FUZZY_PINYIN,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinShiftSelectCandidate, false, "ShiftSelectCandidate",
+  { prefs::kLanguagePinyinShiftSelectCandidate, false, input_method::kPinyinShiftSelectCandidate,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_SHIFT_SELECT_PINYIN,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinMinusEqualPage, true, "MinusEqualPage",
+  { prefs::kLanguagePinyinMinusEqualPage, true, input_method::kPinyinMinusEqualPage,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_MINUS_EQUAL_PAGE,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinCommaPeriodPage, true, "CommaPeriodPage",
+  { prefs::kLanguagePinyinCommaPeriodPage, true, input_method::kPinyinCommaPeriodPage,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_COMMA_PERIOD_PAGE,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinAutoCommit, false, "AutoCommit",
+  { prefs::kLanguagePinyinAutoCommit, false, input_method::kPinyinAutoCommit,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_AUTO_COMMIT,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinDoublePinyin, false, "DoublePinyin",
+  { prefs::kLanguagePinyinDoublePinyin, false, input_method::kPinyinDoublePinyin,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_DOUBLE_PINYIN,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinInitChinese, true, "InitChinese",
+  { prefs::kLanguagePinyinInitChinese, true, input_method::kPinyinInitChinese,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_INIT_CHINESE,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinInitFull, false, "InitFull",
+  { prefs::kLanguagePinyinInitFull, false, input_method::kPinyinInitFull,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_INIT_FULL,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinInitFullPunct, true, "InitFullPunct",
+  { prefs::kLanguagePinyinInitFullPunct, true, input_method::kPinyinInitFullPunct,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_INIT_FULL_PUNCT,
     PrefService::SYNCABLE_PREF },
-  { prefs::kLanguagePinyinInitSimplifiedChinese, true, "InitSimplifiedChinese",
+  { prefs::kLanguagePinyinInitSimplifiedChinese, true, input_method::kPinyinInitSimplifiedChinese,
     IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_SETTING_INIT_SIMPLIFIED_CHINESE,
     PrefService::SYNCABLE_PREF },
   // TODO(yusukes): Support PINYIN_{INCOMPLETE,CORRECT,FUZZY}_... prefs (32
   // additional boolean prefs.)
 };
 COMPILE_ASSERT(kNumPinyinBooleanPrefs == arraysize(kPinyinBooleanPrefs),
                TheSizeShouldMatch);
 // TODO(yusukes): Support HalfWidthPuncts and IncompletePinyin prefs if needed.
 
 const LanguageMultipleChoicePreference<int> kPinyinDoublePinyinSchema = {
   prefs::kLanguagePinyinDoublePinyinSchema,
-  0,
-  "DoublePinyinSchema",
-  {{ 0, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_MSPY},
-   { 1, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_ZRM},
-   { 2, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_ABC},
-   { 3, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_ZGPY},
-   { 4, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_PYJJ}},
+  input_method::kPinyinDoublePinyinSchemaMspy,
+  input_method::kPinyinDoublePinyinSchema,
+  {{ input_method::kPinyinDoublePinyinSchemaMspy, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_MSPY},
+   { input_method::kPinyinDoublePinyinSchemaZrm, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_ZRM},
+   { input_method::kPinyinDoublePinyinSchemaAbc, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_ABC},
+   { input_method::kPinyinDoublePinyinSchemaZgpy, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_ZGPY},
+   { input_method::kPinyinDoublePinyinSchemaPyjj, IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA_PYJJ}},
   IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DOUBLE_SCHEMA,
   PrefService::SYNCABLE_PREF,
 };
 
 const PinyinIntegerPref kPinyinIntegerPrefs[] = {
   // TODO(yusukes): the type of lookup_table_page_size on ibus should be uint.
-  { prefs::kLanguagePinyinLookupTablePageSize, 5, "LookupTablePageSize",
+  { prefs::kLanguagePinyinLookupTablePageSize, 5, input_method::kPinyinLookupTablePageSize,
     PrefService::UNSYNCABLE_PREF }  // don't sync as it's not user configurable.
 };
 COMPILE_ASSERT(kNumPinyinIntegerPrefs == arraysize(kPinyinIntegerPrefs),
                TheSizeShouldMatch);
 
 // ---------------------------------------------------------------------------
 // For Japanese input method (ibus-mozc)
 // ---------------------------------------------------------------------------
-const char kMozcSectionName[] = "engine/Mozc";
 
 const LanguageBooleanPrefs kMozcBooleanPrefs[] = {
   { prefs::kLanguageMozcIncognitoMode,
     false,
-    "incognito_mode",
+    input_method::kMozcIncognitoMode,
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_INCOGNITO_MODE,
     PrefService::SYNCABLE_PREF },
   { prefs::kLanguageMozcUseAutoImeTurnOff,
     true,
-    "use_auto_ime_turn_off",
+    input_method::kMozcUseAutoImeTurnOff,
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_USE_AUTO_IME_TURN_OFF,
     PrefService::SYNCABLE_PREF },
   { prefs::kLanguageMozcUseHistorySuggest,
     true,
-    "use_history_suggest",
+    input_method::kMozcUseHistorySuggest,
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_USE_HISTORY_SUGGEST,
     PrefService::SYNCABLE_PREF },
   { prefs::kLanguageMozcUseDictionarySuggest,
     true,
-    "use_dictionary_suggest",
+    input_method::kMozcUseDictionarySuggest,
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_USE_DICTIONARY_SUGGEST,
     PrefService::SYNCABLE_PREF },
 };
 COMPILE_ASSERT(kNumMozcBooleanPrefs == arraysize(kMozcBooleanPrefs),
                TheSizeShouldMatch);
 
 extern const LanguageMultipleChoicePreference<const char*>
     kMozcMultipleChoicePrefs[] = {
   { prefs::kLanguageMozcPreeditMethod,
-    "ROMAN",
-    "preedit_method",
-    {{ "ROMAN", IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PREEDIT_METHOD_ROMAN },
-     { "KANA", IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PREEDIT_METHOD_KANA }},
+    input_method::kMozcPreeditMethodRoman,
+    input_method::kMozcPreeditMethod,
+    {{ input_method::kMozcPreeditMethodRoman, IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PREEDIT_METHOD_ROMAN },
+     { input_method::kMozcPreeditMethodKana, IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PREEDIT_METHOD_KANA }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PREEDIT_METHOD,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageMozcSessionKeymap,
-    "MSIME",
-    "session_keymap",
-    {{ "ATOK", IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP_ATOK },
-     { "MSIME", IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP_MSIME },
-     { "KOTOERI", IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP_KOTOERI }},
+    input_method::kMozcSessionKeymapMsime,
+    input_method::kMozcSessionKeymap,
+    {{ input_method::kMozcSessionKeymapAtok, IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP_ATOK },
+     { input_method::kMozcSessionKeymapMsime, IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP_MSIME },
+     { input_method::kMozcSessionKeymapKotoeri, IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP_KOTOERI }},
     // TODO: Support "CUSTOM" keymap.
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SESSION_KEYMAP,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageMozcPunctuationMethod,
-    "KUTEN_TOUTEN",
-    "punctuation_method",
-    {{ "KUTEN_TOUTEN",
+    input_method::kMozcPunctuationMethodKutenTouten,
+    input_method::kMozcPunctuationMethod,
+    {{ input_method::kMozcPunctuationMethodKutenTouten,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PUNCTUATION_METHOD_KUTEN_TOUTEN },
-     { "COMMA_PERIOD",
+     { input_method::kMozcPunctuationMethodCommaPeriod,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PUNCTUATION_METHOD_COMMA_PERIOD },
-     { "KUTEN_PERIOD",
+     { input_method::kMozcPunctuationMethodKutenPeriod,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PUNCTUATION_METHOD_KUTEN_PERIOD },
-     { "COMMA_TOUTEN",
+     { input_method::kMozcPunctuationMethodCommaTouten,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PUNCTUATION_METHOD_COMMA_TOUTEN }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_PUNCTUATION_METHOD,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageMozcSymbolMethod,
-    "CORNER_BRACKET_MIDDLE_DOT",
-    "symbol_method",
-    {{ "CORNER_BRACKET_MIDDLE_DOT",
+    input_method::kMozcSymbolMethodCornerBracketMiddleDot,
+    input_method::kMozcSymbolMethod,
+    {{ input_method::kMozcSymbolMethodCornerBracketMiddleDot,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SYMBOL_METHOD_CORNER_BRACKET_MIDDLE_DOT },
-     { "SQUARE_BRACKET_SLASH",
+     { input_method::kMozcSymbolMethodSquareBracketSlash,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SYMBOL_METHOD_SQUARE_BRACKET_SLASH },
-     { "CORNER_BRACKET_SLASH",
+     { input_method::kMozcSymbolMethodCornerBracketSlash,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SYMBOL_METHOD_CORNER_BRACKET_SLASH },
-     { "SQUARE_BRACKET_MIDDLE_DOT",
+     { input_method::kMozcSymbolMethodSquareBracketMiddleDot,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SYMBOL_METHOD_SQUARE_BRACKET_MIDDLE_DOT }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SYMBOL_METHOD,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageMozcSpaceCharacterForm,
-    "FUNDAMENTAL_INPUT_MODE",
-    "space_character_form",
-    {{ "FUNDAMENTAL_INPUT_MODE",
+    input_method::kMozcSpaceCharacterFormFundamentalInputMode,
+    input_method::kMozcSpaceCharacterForm,
+    {{ input_method::kMozcSpaceCharacterFormFundamentalInputMode,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SPACE_CHARACTER_FORM_FUNDAMENTAL_INPUT_MODE },
-     { "FUNDAMENTAL_FULL_WIDTH",
+     { input_method::kMozcSpaceCharacterFormFundamentalFullWidth,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SPACE_CHARACTER_FORM_FUNDAMENTAL_FULL_WIDTH },
-     { "FUNDAMENTAL_HALF_WIDTH",
+     { input_method::kMozcSpaceCharacterFormFundamentalHalfWidth,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SPACE_CHARACTER_FORM_FUNDAMENTAL_HALF_WIDTH }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SPACE_CHARACTER_FORM,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageMozcHistoryLearningLevel,
-    "DEFAULT_HISTORY",
-    "history_learning_level",
-    {{ "DEFAULT_HISTORY",
+    input_method::kMozcHistoryLearningLevelDefaultHistory,
+    input_method::kMozcHistoryLearningLevel,
+    {{ input_method::kMozcHistoryLearningLevelDefaultHistory,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_HISTORY_LEARNING_LEVEL_DEFAULT_HISTORY },
-     { "READ_ONLY",
+     { input_method::kMozcHistoryLearningLevelReadOnly,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_HISTORY_LEARNING_LEVEL_READ_ONLY },
-     { "NO_HISTORY",
+     { input_method::kMozcHistoryLearningLevelNoHistory,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_HISTORY_LEARNING_LEVEL_NO_HISTORY }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_HISTORY_LEARNING_LEVEL,
     PrefService::SYNCABLE_PREF,
   },
   // TODO(mazda): Uncomment this block once the candidate window in Chrome OS
   // supports changing shortcut labels.
   // { prefs::kLanguageMozcSelectionShortcut,
-  //   "SHORTCUT_123456789",
-  //   "selection_shortcut",
-  //   {{ "NO_SHORTCUT",
+  //   input_method::kMozcSelectionShortcutShortcut123456789,
+  //   input_method::kMozcSelectionShortcut,
+  //   {{ input_method::kMozcSelectionShortcutNoShortcut,
   //      IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SELECTION_SHORTCUT_NO_SHORTCUT },
-  //    { "SHORTCUT_123456789",
+  //    { input_method::kMozcSelectionShortcutShortcut123456789,
   //      IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SELECTION_SHORTCUT_SHORTCUT_123456789 },
-  //    { "SHORTCUT_ASDFGHJKL",
+  //    { input_method::kMozcSelectionShortcutShortcutAsdfghjkl,
   //      IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SELECTION_SHORTCUT_SHORTCUT_ASDFGHJKL }},
   //   IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SELECTION_SHORTCUT,
   //   PrefService::SYNCABLE_PREF,
   // },
   { prefs::kLanguageMozcShiftKeyModeSwitch,
-    "ASCII_INPUT_MODE",
-    "shift_key_mode_switch",
-    {{ "OFF",
+    input_method::kMozcShiftKeyModeSwitchAsciiInputMode,
+    input_method::kMozcShiftKeyModeSwitch,
+    {{ input_method::kMozcShiftKeyModeSwitchOff,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SHIFT_KEY_MODE_SWITCH_OFF },
-     { "ASCII_INPUT_MODE",
+     { input_method::kMozcShiftKeyModeSwitchAsciiInputMode,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SHIFT_KEY_MODE_SWITCH_ASCII_INPUT_MODE },
-     { "KATAKANA_INPUT_MODE",
+     { input_method::kMozcShiftKeyModeSwitchKatakanaInputMode,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SHIFT_KEY_MODE_SWITCH_KATAKANA_INPUT_MODE }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SHIFT_KEY_MODE_SWITCH,
     PrefService::SYNCABLE_PREF,
   },
   { prefs::kLanguageMozcNumpadCharacterForm,
-    "NUMPAD_HALF_WIDTH",
-    "numpad_character_form",
-    {{ "NUMPAD_INPUT_MODE",
+    input_method::kMozcNumpadCharacterFormNumpadHalfWidth,
+    input_method::kMozcNumpadCharacterForm,
+    {{ input_method::kMozcNumpadCharacterFormNumpadInputMode,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_NUMPAD_CHARACTER_FORM_NUMPAD_INPUT_MODE },
-     { "NUMPAD_FULL_WIDTH",
+     { input_method::kMozcNumpadCharacterFormNumpadFullWidth,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_NUMPAD_CHARACTER_FORM_NUMPAD_FULL_WIDTH },
-     { "NUMPAD_HALF_WIDTH",
+     { input_method::kMozcNumpadCharacterFormNumpadHalfWidth,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_NUMPAD_CHARACTER_FORM_NUMPAD_HALF_WIDTH },
-     { "NUMPAD_DIRECT_INPUT",
+     { input_method::kMozcNumpadCharacterFormNumpadDirectInput,
        IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_NUMPAD_CHARACTER_FORM_NUMPAD_DIRECT_INPUT }},
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_NUMPAD_CHARACTER_FORM,
     PrefService::SYNCABLE_PREF,
   },
 };
 COMPILE_ASSERT(kNumMozcMultipleChoicePrefs ==
                arraysize(kMozcMultipleChoicePrefs),
                TheSizeShouldMatch);
 
 const LanguageIntegerRangePreference kMozcIntegerPrefs[] = {
-  { prefs::kLanguageMozcSuggestionsSize, 3, 1, 9, "suggestions_size",
+  { prefs::kLanguageMozcSuggestionsSize, 3, 1, 9, input_method::kMozcSuggestionsSize,
     IDS_OPTIONS_SETTINGS_LANGUAGES_MOZC_SUGGESTIONS_SIZE,
     PrefService::SYNCABLE_PREF }
 };
 COMPILE_ASSERT(kNumMozcIntegerPrefs == arraysize(kMozcIntegerPrefs),
                TheSizeShouldMatch);
 
 // ---------------------------------------------------------------------------
 // For keyboard stuff
 // ---------------------------------------------------------------------------
 const int kXkbAutoRepeatDelayInMs = 500;
 const int kXkbAutoRepeatIntervalInMs = 50;
 const char kPreferredKeyboardLayout[] = "PreferredKeyboardLayout";
 
 void RegisterPrefs(PrefService* local_state) {
   // We use an empty string here rather than a hardware keyboard layout name
   // since input_method::GetHardwareInputMethodId() might return a fallback
   // layout name if local_state->RegisterStringPref(kHardwareKeyboardLayout)
   // is not called yet.
   local_state->RegisterStringPref(kPreferredKeyboardLayout,
                                   "",
                                   PrefService::UNSYNCABLE_PREF);
 }
 
 }  // namespace language_prefs
 }  // namespace chromeos