Upstream version 9.38.198.0
[platform/framework/web/crosswalk.git] / src / chrome / browser / chromeos / input_method / input_method_util.cc
index f1209d7..5004f37 100644 (file)
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "chrome/common/extensions/extension_constants.h"
+// TODO(nona): move this header from this file.
+#include "chrome/grit/generated_resources.h"
 #include "chromeos/ime/component_extension_ime_manager.h"
 #include "chromeos/ime/extension_ime_util.h"
+// For SetHardwareKeyboardLayoutForTesting.
+#include "chromeos/ime/fake_input_method_delegate.h"
 #include "chromeos/ime/input_method_delegate.h"
-// TODO(nona): move this header from this file.
-#include "grit/generated_resources.h"
+#include "chromeos/ime/input_method_whitelist.h"
 
 namespace {
 
@@ -27,57 +31,30 @@ namespace {
 // mapping is necessary since some input methods belong to the same language.
 // For example, both "xkb:us::eng" and "xkb:us:dvorak:eng" are for US English.
 const struct {
-  const char* input_method_id;
+  const char* engine_id;
   const char* indicator_text;
 } kMappingFromIdToIndicatorText[] = {
-  // To distinguish from "xkb:us::eng"
-  { "xkb:us:altgr-intl:eng", "EXTD" },
-  { "xkb:us:dvorak:eng", "DV" },
-  { "xkb:us:intl:eng", "INTL" },
-  { "xkb:us:colemak:eng", "CO" },
-  { "english-m", "??" },
-  { "xkb:de:neo:ger", "NEO" },
-  // To distinguish from "xkb:es::spa"
-  { "xkb:es:cat:cat", "CAS" },
-  // To distinguish from "xkb:gb::eng"
-  { "xkb:gb:dvorak:eng", "DV" },
   // To distinguish from "xkb:jp::jpn"
   // TODO(nona): Make following variables configurable. http://crbug.com/232260.
-  { "_comp_ime_fpfbhcjppmaeaijcidgiibchfbnhbeljnacl_mozc_us", "\xe3\x81\x82" },
-  { "_comp_ime_fpfbhcjppmaeaijcidgiibchfbnhbeljnacl_mozc_jp", "\xe3\x81\x82" },
-  { "_comp_ime_bbaiamgfapehflhememkfglaehiobjnknacl_mozc_us", "\xe3\x81\x82" },
-  { "_comp_ime_bbaiamgfapehflhememkfglaehiobjnknacl_mozc_jp", "\xe3\x81\x82" },
+  { "nacl_mozc_us", "\xe3\x81\x82" },
+  { "nacl_mozc_jp", "\xe3\x81\x82" },
   // For simplified Chinese input methods
-  { "pinyin", "\xe6\x8b\xbc" },  // U+62FC
-  { "_comp_ime_cpgalbafkoofkjmaeonnfijgpfennjjnzh-t-i0-pinyin",
-    "\xe6\x8b\xbc" },
-  { "_comp_ime_nmblnjkfdkabgdofidlkienfnnbjhnabzh-t-i0-pinyin",
-    "\xe6\x8b\xbc" },
-  { "_comp_ime_gjhclobljhjhgoebiipblnmdodbmpdgdzh-t-i0-wubi-1986",
-    "\xe4\xba\x94" }, // U+4E94
-  { "pinyin-dv", "\xe6\x8b\xbc" },
+  { "zh-t-i0-pinyin", "\xe6\x8b\xbc" },  // U+62FC
+  { "zh-t-i0-wubi-1986", "\xe4\xba\x94" }, // U+4E94
   // For traditional Chinese input methods
-  { "mozc-chewing", "\xe9\x85\xb7" },  // U+9177
-  { "_comp_ime_ekbifjdfhkmdeeajnolmgdlmkllopefizh-hant-t-i0-und",
-    "\xE6\xB3\xA8" },  // U+6CE8
-  { "_comp_ime_goedamlknlnjaengojinmfgpmdjmkooozh-hant-t-i0-und",
-    "\xE6\xB3\xA8" },  // U+6CE8
-  { "m17n:zh:cangjie", "\xe5\x80\x89" },  // U+5009
-  { "_comp_ime_aeebooiibjahgpgmhkeocbeekccfknbjzh-hant-t-i0-cangjie-1987",
-    "\xe5\x80\x89" },  // U+5009
-  { "_comp_ime_gjhclobljhjhgoebiipblnmdodbmpdgdzh-hant-t-i0-cangjie-1987",
-    "\xe5\x80\x89" },  // U+5009
-  { "m17n:zh:quick", "\xe9\x80\x9f" },  // U+901F
+  { "zh-hant-t-i0-und", "\xE6\xB3\xA8" },  // U+9177
+  { "zh-hant-t-i0-cangjie-1987", "\xe5\x80\x89" },  // U+5009
+  { "zh-hant-t-i0-cangjie-1987-x-m0-simplified", "\xe9\x80\x9f" },  // U+901F
   // For Hangul input method.
-  { "mozc-hangul", "\xed\x95\x9c" },  // U+D55C
-  { "_comp_ime_bdgdidmhaijohebebipajioienkglgfohangul_2set", "\xed\x95\x9c" },
-  { "_comp_ime_bdgdidmhaijohebebipajioienkglgfohangul_3set390",
-    "\xed\x95\x9c" },
-  { "_comp_ime_bdgdidmhaijohebebipajioienkglgfohangul_3setfinal",
-    "\xed\x95\x9c" },
-  { "_comp_ime_bdgdidmhaijohebebipajioienkglgfohangul_3setnoshift",
-    "\xed\x95\x9c" },
-  { "_comp_ime_bdgdidmhaijohebebipajioienkglgfohangul_romaja", "\xed\x95\x9c" },
+  { "hangul_2set", "\xed\x95\x9c" },  // U+D55C
+  { "hangul_3set390", "\xed\x95\x9c" },  // U+D55C
+  { "hangul_3setfinal", "\xed\x95\x9c" },  // U+D55C
+  { "hangul_3setnoshift", "\xed\x95\x9c" },  // U+D55C
+  { "hangul_romaja", "\xed\x95\x9c" },  // U+D55C
+  { extension_misc::kBrailleImeEngineId,
+    // U+2803 U+2817 U+2807 (Unicode braille patterns for the letters 'brl' in
+    // English (and many other) braille codes.
+    "\xe2\xa0\x83\xe2\xa0\x97\xe2\xa0\x87" },
 };
 
 const size_t kMappingFromIdToIndicatorTextLen =
@@ -89,29 +66,23 @@ const size_t kMappingFromIdToIndicatorTextLen =
 // "Your input method has changed to..." bubble than in the status tray.
 // If an entry is not found in this table the short name is used.
 const struct {
-  const char* input_method_id;
+  const char* engine_id;
   const int resource_id;
 } kMappingImeIdToMediumLenNameResourceId[] = {
-  { "m17n:zh:cangjie", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
-  { "m17n:zh:quick", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
-  { "mozc-chewing", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
-  { "mozc-hangul", IDS_LANGUAGES_MEDIUM_LEN_NAME_KOREAN },
-  { "pinyin", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED },
-  { "pinyin-dv", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED },
-  { "_comp_ime_cpgalbafkoofkjmaeonnfijgpfennjjnzh-t-i0-pinyin",
-    IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED},
-  { "_comp_ime_nmblnjkfdkabgdofidlkienfnnbjhnabzh-t-i0-pinyin",
-    IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED },
-  { "_comp_ime_gjhclobljhjhgoebiipblnmdodbmpdgdzh-t-i0-wubi-1986",
-    IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED },
-  { "_comp_ime_ekbifjdfhkmdeeajnolmgdlmkllopefizh-hant-t-i0-und",
-    IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
-  { "_comp_ime_goedamlknlnjaengojinmfgpmdjmkooozh-hant-t-i0-und",
+  { "hangul_2set", IDS_LANGUAGES_MEDIUM_LEN_NAME_KOREAN },
+  { "hangul_3set390", IDS_LANGUAGES_MEDIUM_LEN_NAME_KOREAN },
+  { "hangul_3setfinal", IDS_LANGUAGES_MEDIUM_LEN_NAME_KOREAN },
+  { "hangul_3setnoshift", IDS_LANGUAGES_MEDIUM_LEN_NAME_KOREAN },
+  { "hangul_3setromaja", IDS_LANGUAGES_MEDIUM_LEN_NAME_KOREAN },
+  { "zh-t-i0-pinyin", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED},
+  { "zh-t-i0-wubi-1986", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_SIMPLIFIED },
+  { "zh-hant-t-i0-und", IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
+  { "zh-hant-t-i0-cangjie-1987",
     IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
-  { "_comp_ime_aeebooiibjahgpgmhkeocbeekccfknbjzh-hant-t-i0-cangjie-1987",
-    IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
-  { "_comp_ime_gjhclobljhjhgoebiipblnmdodbmpdgdzh-hant-t-i0-cangjie-1987",
+  { "zh-hant-t-i0-cangjie-1987-x-m0-simplified",
     IDS_LANGUAGES_MEDIUM_LEN_NAME_CHINESE_TRADITIONAL },
+  { extension_misc::kBrailleImeEngineId,
+    IDS_LANGUAGES_MEDIUM_LEN_NAME_BRAILLE },
 };
 const size_t kMappingImeIdToMediumLenNameResourceIdLen =
     ARRAYSIZE_UNSAFE(kMappingImeIdToMediumLenNameResourceId);
@@ -123,184 +94,172 @@ const size_t kMappingImeIdToMediumLenNameResourceIdLen =
 const struct {
   const char* locale;
   const char* layout;
-  const char* input_method_id;
+  const char* engine_id;
 } kDefaultInputMethodRecommendation[] = {
-  { "ja", "us", "_comp_ime_fpfbhcjppmaeaijcidgiibchfbnhbeljnacl_mozc_us" },
-  { "ja", "jp", "_comp_ime_fpfbhcjppmaeaijcidgiibchfbnhbeljnacl_mozc_jp" },
-  { "zh-CN", "us", "_comp_ime_nmblnjkfdkabgdofidlkienfnnbjhnabzh-t-i0-pinyin" },
-  { "zh-TW", "us",
-    "_comp_ime_goedamlknlnjaengojinmfgpmdjmkooozh-hant-t-i0-und" },
-  { "th", "us", "_comp_ime_jhffeifommiaekmbkkjlpmilogcfdohpvkd_th" },
-  { "vi", "us", "_comp_ime_jhffeifommiaekmbkkjlpmilogcfdohpvkd_vi_tcvn" },
-  { "vi", "us", "_comp_ime_jhffeifommiaekmbkkjlpmilogcfdohpvkd_vi_tcvn" },
+  { "ja", "us", "nacl_mozc_us" },
+  { "ja", "jp", "nacl_mozc_jp" },
+  { "zh-CN", "us", "zh-t-i0-pinyin" },
+  { "zh-TW", "us", "zh-hant-t-i0-und" },
+  { "th", "us", "vkd_th" },
+  { "vi", "us", "vkd_vi_tcvn" },
 };
 
-}  // namespace
-
-namespace chromeos {
-
-extern const char* kExtensionImePrefix;
+// The map from xkb layout to the indicator text.
+// Refer to crbug.com/349829.
+const char* const kXkbIndicators[][2] = {{"am", "AM"},
+                                         {"be", "BE"},
+                                         {"bg", "BG"},
+                                         {"bg(phonetic)", "BG"},
+                                         {"br", "BR"},
+                                         {"by", "BY"},
+                                         {"ca", "CA"},
+                                         {"ca(eng)", "CA"},
+                                         {"ca(multix)", "CA"},
+                                         {"ch", "CH"},
+                                         {"ch(fr)", "CH"},
+                                         {"cz", "CZ"},
+                                         {"cz(qwerty)", "CS"},
+                                         {"de", "DE"},
+                                         {"de(neo)", "NEO"},
+                                         {"dk", "DK"},
+                                         {"ee", "EE"},
+                                         {"es", "ES"},
+                                         {"es(cat)", "CAS"},
+                                         {"fi", "FI"},
+                                         {"fr", "FR"},
+                                         {"gb(dvorak)", "DV"},
+                                         {"gb(extd)", "GB"},
+                                         {"ge", "GE"},
+                                         {"gr", "GR"},
+                                         {"hr", "HR"},
+                                         {"hu", "HU"},
+                                         {"il", "IL"},
+                                         {"is", "IS"},
+                                         {"it", "IT"},
+                                         {"jp", "JA"},
+                                         {"latam", "LA"},
+                                         {"lt", "LT"},
+                                         {"lv(apostrophe)", "LV"},
+                                         {"mn", "MN"},
+                                         {"no", "NO"},
+                                         {"pl", "PL"},
+                                         {"pt", "PT"},
+                                         {"ro", "RO"},
+                                         {"rs", "RS"},
+                                         {"ru", "RU"},
+                                         {"ru(phonetic)", "RU"},
+                                         {"se", "SE"},
+                                         {"si", "SI"},
+                                         {"sk", "SK"},
+                                         {"tr", "TR"},
+                                         {"ua", "UA"},
+                                         {"us", "US"},
+                                         {"us(altgr-intl)", "EXTD"},
+                                         {"us(colemak)", "CO"},
+                                         {"us(dvorak)", "DV"},
+                                         {"us(intl)", "INTL"}, };
+
+// The extension ID map for migration.
+const char* const kExtensionIdMigrationMap[][2] = {
+  // Official Japanese IME extension ID.
+  {"fpfbhcjppmaeaijcidgiibchfbnhbelj", "gjaehgfemfahhmlgpdfknkhdnemmolop"},
+  // Official M17n keyboard extension ID.
+  {"habcdindjejkmepknlhkkloncjcpcnbf", "gjaehgfemfahhmlgpdfknkhdnemmolop"},
+};
 
-namespace input_method {
+// The engine ID map for migration. This migration is for input method IDs from
+// VPD so it's NOT a temporary migration.
+const char* const kEngineIdMigrationMap[][2] = {
+  {"m17n:", "vkd_"},
+  {"ime:zh-t:quick", "zh-hant-t-i0-cangjie-1987-x-m0-simplified"},
+  {"ime:zh-t:zhuyin", "zh-hant-t-i0-und"},
+  {"ime:ko:hangul", "hangul_2set"},
+  {"ime:ko:hangul_2set", "hangul_2set"},
+};
 
-namespace {
+const size_t kExtensionIdLen = 32;
 
 const struct EnglishToResouceId {
   const char* english_string_from_ibus;
   int resource_id;
 } kEnglishToResourceIdArray[] = {
-  // For ibus-mozc-hangul
-  { "Hanja mode", IDS_STATUSBAR_IME_KOREAN_HANJA_INPUT_MODE },
-  { "Hangul mode", IDS_STATUSBAR_IME_KOREAN_HANGUL_INPUT_MODE },
-
-  // For ibus-mozc-pinyin.
-  { "Full/Half width",
-    IDS_STATUSBAR_IME_CHINESE_PINYIN_TOGGLE_FULL_HALF },
-  { "Full/Half width punctuation",
-    IDS_STATUSBAR_IME_CHINESE_PINYIN_TOGGLE_FULL_HALF_PUNCTUATION },
-  // TODO(hsumita): Fixes a typo
-  { "Simplfied/Traditional Chinese",
-    IDS_STATUSBAR_IME_CHINESE_PINYIN_TOGGLE_S_T_CHINESE },
-  { "Chinese",
-    IDS_STATUSBAR_IME_CHINESE_PINYIN_TOGGLE_CHINESE_ENGLISH },
-
-  // For ibus-mozc-chewing.
-  { "English",
-    IDS_STATUSBAR_IME_CHINESE_MOZC_CHEWING_ENGLISH_MODE },
-  { "_Chinese",
-    IDS_STATUSBAR_IME_CHINESE_MOZC_CHEWING_CHINESE_MODE },
-  { "Full-width English",
-    IDS_STATUSBAR_IME_CHINESE_MOZC_CHEWING_FULL_WIDTH_ENGLISH_MODE },
-
-  // For the "Languages and Input" dialog.
-  { "m17n:ar:kbd", IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:hi:itrans",  // also uses the "STANDARD_INPUT_METHOD" id.
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:zh:cangjie",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_CHINESE_CANGJIE_INPUT_METHOD },
-  { "m17n:zh:quick",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_CHINESE_QUICK_INPUT_METHOD },
-  { "m17n:fa:isiri",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_PERSIAN_ISIRI_2901_INPUT_METHOD },
-  { "m17n:th:kesmanee",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_THAI_KESMANEE_INPUT_METHOD },
-  { "m17n:th:tis820",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_THAI_TIS820_INPUT_METHOD },
-  { "m17n:th:pattachote",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_THAI_PATTACHOTE_INPUT_METHOD },
-  { "m17n:vi:tcvn",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_VIETNAMESE_TCVN_INPUT_METHOD },
-  { "m17n:vi:telex",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_VIETNAMESE_TELEX_INPUT_METHOD },
-  { "m17n:vi:viqr",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_VIETNAMESE_VIQR_INPUT_METHOD },
-  { "m17n:vi:vni",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_VIETNAMESE_VNI_INPUT_METHOD },
-  { "m17n:bn:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:gu:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:ml:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:mr:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:ta:phonetic",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_TAMIL_PHONETIC },
-  { "m17n:ta:inscript",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_TAMIL_INSCRIPT },
-  { "m17n:ta:tamil99",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_TAMIL_TAMIL99 },
-  { "m17n:ta:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_TAMIL_ITRANS },
-  { "m17n:ta:typewriter",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_TAMIL_TYPEWRITER },
-  { "m17n:am:sera",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:te:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-  { "m17n:kn:itrans",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD },
-
-  { "mozc-chewing",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_CHEWING_INPUT_METHOD },
-  { "pinyin", IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_INPUT_METHOD },
-  { "pinyin-dv",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_PINYIN_DV_INPUT_METHOD },
-  { "zinnia-japanese",
-    IDS_OPTIONS_SETTINGS_LANGUAGES_JAPANESE_HANDWRITING_INPUT_METHOD },
-  { "mozc-hangul", IDS_OPTIONS_SETTINGS_LANGUAGES_KOREAN_INPUT_METHOD },
-
-  // For ibus-xkb-layouts engine: third_party/ibus-xkb-layouts/files
-  { "xkb:jp::jpn", IDS_STATUSBAR_LAYOUT_JAPAN },
-  { "xkb:si::slv", IDS_STATUSBAR_LAYOUT_SLOVENIA },
-  { "xkb:de::ger", IDS_STATUSBAR_LAYOUT_GERMANY },
-  { "xkb:de:neo:ger", IDS_STATUSBAR_LAYOUT_GERMANY_NEO2 },
-  { "xkb:it::ita", IDS_STATUSBAR_LAYOUT_ITALY },
-  { "xkb:ee::est", IDS_STATUSBAR_LAYOUT_ESTONIA },
-  { "xkb:hu::hun", IDS_STATUSBAR_LAYOUT_HUNGARY },
-  { "xkb:pl::pol", IDS_STATUSBAR_LAYOUT_POLAND },
-  { "xkb:dk::dan", IDS_STATUSBAR_LAYOUT_DENMARK },
-  { "xkb:hr::scr", IDS_STATUSBAR_LAYOUT_CROATIA },
-  { "xkb:br::por", IDS_STATUSBAR_LAYOUT_BRAZIL },
-  { "xkb:rs::srp", IDS_STATUSBAR_LAYOUT_SERBIA },
-  { "xkb:cz::cze", IDS_STATUSBAR_LAYOUT_CZECHIA },
-  { "xkb:cz:qwerty:cze", IDS_STATUSBAR_LAYOUT_CZECHIA_QWERTY },
-  { "xkb:us:dvorak:eng", IDS_STATUSBAR_LAYOUT_USA_DVORAK },
-  { "xkb:us:colemak:eng", IDS_STATUSBAR_LAYOUT_USA_COLEMAK },
-  { "xkb:ro::rum", IDS_STATUSBAR_LAYOUT_ROMANIA },
-  { "xkb:us::eng", IDS_STATUSBAR_LAYOUT_USA },
-  { "xkb:us:altgr-intl:eng", IDS_STATUSBAR_LAYOUT_USA_EXTENDED },
-  { "xkb:us:intl:eng", IDS_STATUSBAR_LAYOUT_USA_INTERNATIONAL },
-  { "xkb:lt::lit", IDS_STATUSBAR_LAYOUT_LITHUANIA },
-  { "xkb:gb:extd:eng", IDS_STATUSBAR_LAYOUT_UNITED_KINGDOM },
-  { "xkb:gb:dvorak:eng", IDS_STATUSBAR_LAYOUT_UNITED_KINGDOM_DVORAK },
-  { "xkb:sk::slo", IDS_STATUSBAR_LAYOUT_SLOVAKIA },
-  { "xkb:ru::rus", IDS_STATUSBAR_LAYOUT_RUSSIA },
-  { "xkb:ru:phonetic:rus", IDS_STATUSBAR_LAYOUT_RUSSIA_PHONETIC },
-  { "xkb:gr::gre", IDS_STATUSBAR_LAYOUT_GREECE },
+  // For xkb-layouts.
+  { "xkb:am:phonetic:arm", IDS_STATUSBAR_LAYOUT_ARMENIAN_PHONETIC },
   { "xkb:be::fra", IDS_STATUSBAR_LAYOUT_BELGIUM },
   { "xkb:be::ger", IDS_STATUSBAR_LAYOUT_BELGIUM },
   { "xkb:be::nld", IDS_STATUSBAR_LAYOUT_BELGIUM },
   { "xkb:bg::bul", IDS_STATUSBAR_LAYOUT_BULGARIA },
   { "xkb:bg:phonetic:bul", IDS_STATUSBAR_LAYOUT_BULGARIA_PHONETIC },
+  { "xkb:br::por", IDS_STATUSBAR_LAYOUT_BRAZIL },
+  { "xkb:by::bel", IDS_STATUSBAR_LAYOUT_BELARUSIAN },
+  { "xkb:ca::fra", IDS_STATUSBAR_LAYOUT_CANADA },
+  { "xkb:ca:eng:eng", IDS_STATUSBAR_LAYOUT_CANADA_ENGLISH },
+  { "xkb:ca:multix:fra", IDS_STATUSBAR_LAYOUT_CANADIAN_MULTILINGUAL },
   { "xkb:ch::ger", IDS_STATUSBAR_LAYOUT_SWITZERLAND },
   { "xkb:ch:fr:fra", IDS_STATUSBAR_LAYOUT_SWITZERLAND_FRENCH },
-  { "xkb:tr::tur", IDS_STATUSBAR_LAYOUT_TURKEY },
-  { "xkb:pt::por", IDS_STATUSBAR_LAYOUT_PORTUGAL },
+  { "xkb:cz::cze", IDS_STATUSBAR_LAYOUT_CZECHIA },
+  { "xkb:cz:qwerty:cze", IDS_STATUSBAR_LAYOUT_CZECHIA_QWERTY },
+  { "xkb:de::ger", IDS_STATUSBAR_LAYOUT_GERMANY },
+  { "xkb:de:neo:ger", IDS_STATUSBAR_LAYOUT_GERMANY_NEO2 },
+  { "xkb:dk::dan", IDS_STATUSBAR_LAYOUT_DENMARK },
+  { "xkb:ee::est", IDS_STATUSBAR_LAYOUT_ESTONIA },
   { "xkb:es::spa", IDS_STATUSBAR_LAYOUT_SPAIN },
-  { "xkb:fi::fin", IDS_STATUSBAR_LAYOUT_FINLAND },
-  { "xkb:ua::ukr", IDS_STATUSBAR_LAYOUT_UKRAINE },
   { "xkb:es:cat:cat", IDS_STATUSBAR_LAYOUT_SPAIN_CATALAN },
+  { "xkb:fi::fin", IDS_STATUSBAR_LAYOUT_FINLAND },
   { "xkb:fr::fra", IDS_STATUSBAR_LAYOUT_FRANCE },
-  { "xkb:no::nob", IDS_STATUSBAR_LAYOUT_NORWAY },
-  { "xkb:se::swe", IDS_STATUSBAR_LAYOUT_SWEDEN },
-  { "xkb:nl::nld", IDS_STATUSBAR_LAYOUT_NETHERLANDS },
-  { "xkb:latam::spa", IDS_STATUSBAR_LAYOUT_LATIN_AMERICAN },
-  { "xkb:lv:apostrophe:lav", IDS_STATUSBAR_LAYOUT_LATVIA },
-  { "xkb:ca::fra", IDS_STATUSBAR_LAYOUT_CANADA },
-  { "xkb:ca:eng:eng", IDS_STATUSBAR_LAYOUT_CANADA_ENGLISH },
+  { "xkb:gb:dvorak:eng", IDS_STATUSBAR_LAYOUT_UNITED_KINGDOM_DVORAK },
+  { "xkb:gb:extd:eng", IDS_STATUSBAR_LAYOUT_UNITED_KINGDOM },
+  { "xkb:ge::geo", IDS_STATUSBAR_LAYOUT_GEORGIAN },
+  { "xkb:gr::gre", IDS_STATUSBAR_LAYOUT_GREECE },
+  { "xkb:hr::scr", IDS_STATUSBAR_LAYOUT_CROATIA },
+  { "xkb:hu::hun", IDS_STATUSBAR_LAYOUT_HUNGARY },
+  { "xkb:ie::ga", IDS_STATUSBAR_LAYOUT_IRISH },
   { "xkb:il::heb", IDS_STATUSBAR_LAYOUT_ISRAEL },
-  { "xkb:kr:kr104:kor", IDS_STATUSBAR_LAYOUT_KOREA_104 },
   { "xkb:is::ice", IDS_STATUSBAR_LAYOUT_ICELANDIC },
-  { "xkb:ca:multix:fra", IDS_STATUSBAR_LAYOUT_CANADIAN_MULTILINGUAL },
-  { "xkb:by::bel", IDS_STATUSBAR_LAYOUT_BELARUSIAN },
-  { "xkb:am:phonetic:arm", IDS_STATUSBAR_LAYOUT_ARMENIAN_PHONETIC },
-  { "xkb:ge::geo", IDS_STATUSBAR_LAYOUT_GEORGIAN },
+  { "xkb:it::ita", IDS_STATUSBAR_LAYOUT_ITALY },
+  { "xkb:jp::jpn", IDS_STATUSBAR_LAYOUT_JAPAN },
+  { "xkb:latam::spa", IDS_STATUSBAR_LAYOUT_LATIN_AMERICAN },
+  { "xkb:lt::lit", IDS_STATUSBAR_LAYOUT_LITHUANIA },
+  { "xkb:lv:apostrophe:lav", IDS_STATUSBAR_LAYOUT_LATVIA },
   { "xkb:mn::mon", IDS_STATUSBAR_LAYOUT_MONGOLIAN },
-
-  { "english-m", IDS_STATUSBAR_LAYOUT_USA_MYSTERY },
+  { "xkb:nl::nld", IDS_STATUSBAR_LAYOUT_NETHERLANDS },
+  { "xkb:no::nob", IDS_STATUSBAR_LAYOUT_NORWAY },
+  { "xkb:pl::pol", IDS_STATUSBAR_LAYOUT_POLAND },
+  { "xkb:pt::por", IDS_STATUSBAR_LAYOUT_PORTUGAL },
+  { "xkb:ro::rum", IDS_STATUSBAR_LAYOUT_ROMANIA },
+  { "xkb:rs::srp", IDS_STATUSBAR_LAYOUT_SERBIA },
+  { "xkb:ru::rus", IDS_STATUSBAR_LAYOUT_RUSSIA },
+  { "xkb:ru:phonetic:rus", IDS_STATUSBAR_LAYOUT_RUSSIA_PHONETIC },
+  { "xkb:se::swe", IDS_STATUSBAR_LAYOUT_SWEDEN },
+  { "xkb:si::slv", IDS_STATUSBAR_LAYOUT_SLOVENIA },
+  { "xkb:sk::slo", IDS_STATUSBAR_LAYOUT_SLOVAKIA },
+  { "xkb:tr::tur", IDS_STATUSBAR_LAYOUT_TURKEY },
+  { "xkb:ua::ukr", IDS_STATUSBAR_LAYOUT_UKRAINE },
+  { "xkb:us::eng", IDS_STATUSBAR_LAYOUT_USA },
+  { "xkb:us::fil", IDS_STATUSBAR_LAYOUT_USA },
+  { "xkb:us::ind", IDS_STATUSBAR_LAYOUT_USA },
+  { "xkb:us::msa", IDS_STATUSBAR_LAYOUT_USA },
+  { "xkb:us:altgr-intl:eng", IDS_STATUSBAR_LAYOUT_USA_EXTENDED },
+  { "xkb:us:colemak:eng", IDS_STATUSBAR_LAYOUT_USA_COLEMAK },
+  { "xkb:us:dvorak:eng", IDS_STATUSBAR_LAYOUT_USA_DVORAK },
+  { "xkb:us:intl:eng", IDS_STATUSBAR_LAYOUT_USA_INTERNATIONAL },
+  { "xkb:us:intl:nld", IDS_STATUSBAR_LAYOUT_USA_INTERNATIONAL },
+  { "xkb:us:intl:por", IDS_STATUSBAR_LAYOUT_USA_INTERNATIONAL },
 };
 const size_t kEnglishToResourceIdArraySize =
     arraysize(kEnglishToResourceIdArray);
 
 }  // namespace
 
-InputMethodUtil::InputMethodUtil(
-    InputMethodDelegate* delegate,
-    scoped_ptr<InputMethodDescriptors> supported_input_methods)
-    : supported_input_methods_(supported_input_methods.Pass()),
-      delegate_(delegate) {
-  ReloadInternalMaps();
+namespace chromeos {
+
+namespace input_method {
+
+InputMethodUtil::InputMethodUtil(InputMethodDelegate* delegate)
+    : delegate_(delegate) {
+  InputMethodDescriptors default_input_methods;
+  default_input_methods.push_back(GetFallbackInputMethodDescriptor());
+  ResetInputMethods(default_input_methods);
 
   // Initialize a map from English string to Chrome string resource ID as well.
   for (size_t i = 0; i < kEnglishToResourceIdArraySize; ++i) {
@@ -310,20 +269,31 @@ InputMethodUtil::InputMethodUtil(
     DCHECK(result) << "Duplicated string is found: "
                    << map_entry.english_string_from_ibus;
   }
+
+  // Initialize the map from xkb layout to indicator text.
+  for (size_t i = 0; i < arraysize(kXkbIndicators); ++i) {
+    xkb_layout_to_indicator_[kXkbIndicators[i][0]] = kXkbIndicators[i][1];
+  }
 }
 
 InputMethodUtil::~InputMethodUtil() {
 }
 
 bool InputMethodUtil::TranslateStringInternal(
-    const std::string& english_string, string16 *out_string) const {
+    const std::string& english_string, base::string16 *out_string) const {
   DCHECK(out_string);
-  HashType::const_iterator iter = english_to_resource_id_.find(english_string);
+  // |english_string| could be an input method id. So legacy xkb id is required
+  // to get the translated string.
+  std::string key_string = extension_ime_util::MaybeGetLegacyXkbId(
+      english_string);
+  HashType::const_iterator iter = english_to_resource_id_.find(key_string);
+
   if (iter == english_to_resource_id_.end()) {
     // TODO(yusukes): Write Autotest which checks if all display names and all
     // property names for supported input methods are listed in the resource
     // ID array (crosbug.com/4572).
-    LOG(ERROR) << "Resource ID is not found for: " << english_string;
+    LOG(ERROR) << "Resource ID is not found for: " << english_string
+               << ", " << key_string;
     return false;
   }
 
@@ -331,13 +301,13 @@ bool InputMethodUtil::TranslateStringInternal(
   return true;
 }
 
-string16 InputMethodUtil::TranslateString(
+base::string16 InputMethodUtil::TranslateString(
     const std::string& english_string) const {
-  string16 localized_string;
+  base::string16 localized_string;
   if (TranslateStringInternal(english_string, &localized_string)) {
     return localized_string;
   }
-  return UTF8ToUTF16(english_string);
+  return base::UTF8ToUTF16(english_string);
 }
 
 bool InputMethodUtil::IsValidInputMethodId(
@@ -345,26 +315,13 @@ bool InputMethodUtil::IsValidInputMethodId(
   // We can't check the component extension is whilelisted or not here because
   // it might not be initialized.
   return GetInputMethodDescriptorFromId(input_method_id) != NULL ||
-      ComponentExtensionIMEManager::IsComponentExtensionIMEId(input_method_id);
+      extension_ime_util::IsComponentExtensionIME(input_method_id);
 }
 
 // static
 bool InputMethodUtil::IsKeyboardLayout(const std::string& input_method_id) {
-  const bool kCaseInsensitive = false;
-  return StartsWithASCII(input_method_id, "xkb:", kCaseInsensitive);
-}
-
-std::string InputMethodUtil::GetLanguageCodeFromInputMethodId(
-    const std::string& input_method_id) const {
-  // The code should be compatible with one of codes used for UI languages,
-  // defined in app/l10_util.cc.
-  const char kDefaultLanguageCode[] = "en-US";
-  std::map<std::string, std::string>::const_iterator iter
-      = id_to_language_code_.find(input_method_id);
-  return (iter == id_to_language_code_.end()) ?
-      // Returning |kDefaultLanguageCode| here is not for Chrome OS but for
-      // Ubuntu where the ibus-xkb-layouts engine could be missing.
-      kDefaultLanguageCode : iter->second;
+  return StartsWithASCII(input_method_id, "xkb:", false) ||
+      extension_ime_util::IsKeyboardLayoutExtension(input_method_id);
 }
 
 std::string InputMethodUtil::GetKeyboardLayoutName(
@@ -377,37 +334,41 @@ std::string InputMethodUtil::GetKeyboardLayoutName(
 
 std::string InputMethodUtil::GetInputMethodDisplayNameFromId(
     const std::string& input_method_id) const {
-  string16 display_name;
+  base::string16 display_name;
   if (!extension_ime_util::IsExtensionIME(input_method_id) &&
       TranslateStringInternal(input_method_id, &display_name)) {
-    return UTF16ToUTF8(display_name);
+    return base::UTF16ToUTF8(display_name);
   }
   // Return an empty string if the display name is not found.
   return "";
 }
 
-string16 InputMethodUtil::GetInputMethodShortName(
+base::string16 InputMethodUtil::GetInputMethodShortName(
     const InputMethodDescriptor& input_method) const {
   // For the status area, we use two-letter, upper-case language code like
   // "US" and "JP".
-  string16 text;
 
+  // Use the indicator string if set.
+  if (!input_method.indicator().empty()) {
+    return base::UTF8ToUTF16(input_method.indicator());
+  }
+
+  base::string16 text;
   // Check special cases first.
   for (size_t i = 0; i < kMappingFromIdToIndicatorTextLen; ++i) {
-    if (kMappingFromIdToIndicatorText[i].input_method_id == input_method.id()) {
-      text = UTF8ToUTF16(kMappingFromIdToIndicatorText[i].indicator_text);
+    if (extension_ime_util::GetInputMethodIDByEngineID(
+        kMappingFromIdToIndicatorText[i].engine_id) == input_method.id()) {
+      text = base::UTF8ToUTF16(kMappingFromIdToIndicatorText[i].indicator_text);
       break;
     }
   }
 
   // Display the keyboard layout name when using a keyboard layout.
-  if (text.empty() &&
-      IsKeyboardLayout(input_method.id())) {
-    const size_t kMaxKeyboardLayoutNameLen = 2;
-    const string16 keyboard_layout =
-        UTF8ToUTF16(GetKeyboardLayoutName(input_method.id()));
-    text = StringToUpperASCII(keyboard_layout).substr(
-        0, kMaxKeyboardLayoutNameLen);
+  if (text.empty() && IsKeyboardLayout(input_method.id())) {
+    std::map<std::string, std::string>::const_iterator it =
+        xkb_layout_to_indicator_.find(GetKeyboardLayoutName(input_method.id()));
+    if (it != xkb_layout_to_indicator_.end())
+      text = base::UTF8ToUTF16(it->second);
   }
 
   // TODO(yusukes): Some languages have two or more input methods. For example,
@@ -420,20 +381,21 @@ string16 InputMethodUtil::GetInputMethodShortName(
     const size_t kMaxLanguageNameLen = 2;
     DCHECK(!input_method.language_codes().empty());
     const std::string language_code = input_method.language_codes().at(0);
-    text = StringToUpperASCII(UTF8ToUTF16(language_code)).substr(
+    text = StringToUpperASCII(base::UTF8ToUTF16(language_code)).substr(
         0, kMaxLanguageNameLen);
   }
-  DCHECK(!text.empty());
+  DCHECK(!text.empty()) << input_method.id();
   return text;
 }
 
-string16 InputMethodUtil::GetInputMethodMediumName(
+base::string16 InputMethodUtil::GetInputMethodMediumName(
     const InputMethodDescriptor& input_method) const {
   // For the "Your input method has changed to..." bubble. In most cases
   // it uses the same name as the short name, unless found in a table
   // for medium length names.
   for (size_t i = 0; i < kMappingImeIdToMediumLenNameResourceIdLen; ++i) {
-    if (kMappingImeIdToMediumLenNameResourceId[i].input_method_id ==
+    if (extension_ime_util::GetInputMethodIDByEngineID(
+        kMappingImeIdToMediumLenNameResourceId[i].engine_id) ==
         input_method.id()) {
       return delegate_->GetLocalizedString(
           kMappingImeIdToMediumLenNameResourceId[i].resource_id);
@@ -442,11 +404,11 @@ string16 InputMethodUtil::GetInputMethodMediumName(
   return GetInputMethodShortName(input_method);
 }
 
-string16 InputMethodUtil::GetInputMethodLongName(
+base::string16 InputMethodUtil::GetInputMethodLongName(
     const InputMethodDescriptor& input_method) const {
-  if (!input_method.name().empty()) {
+  if (!input_method.name().empty() && !IsKeyboardLayout(input_method.id())) {
     // If the descriptor has a name, use it.
-    return UTF8ToUTF16(input_method.name());
+    return base::UTF8ToUTF16(input_method.name());
   }
 
   // We don't show language here.  Name of keyboard layout or input method
@@ -456,20 +418,21 @@ string16 InputMethodUtil::GetInputMethodLongName(
   // keyboard layouts and share the same layout of keyboard (Belgian). We need
   // to show explicitly the language for the layout. For Arabic, Amharic, and
   // Indic languages: they share "Standard Input Method".
-  const string16 standard_input_method_text = delegate_->GetLocalizedString(
-      IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD);
+  const base::string16 standard_input_method_text =
+      delegate_->GetLocalizedString(
+          IDS_OPTIONS_SETTINGS_LANGUAGES_M17N_STANDARD_INPUT_METHOD);
   DCHECK(!input_method.language_codes().empty());
   const std::string language_code = input_method.language_codes().at(0);
 
-  string16 text = TranslateString(input_method.id());
+  base::string16 text = TranslateString(input_method.id());
   if (text == standard_input_method_text ||
              language_code == "de" ||
              language_code == "fr" ||
              language_code == "nl") {
-    const string16 language_name = delegate_->GetDisplayLanguageName(
+    const base::string16 language_name = delegate_->GetDisplayLanguageName(
         language_code);
 
-    text = language_name + UTF8ToUTF16(" - ") + text;
+    text = language_name + base::UTF8ToUTF16(" - ") + text;
   }
 
   DCHECK(!text.empty());
@@ -478,9 +441,11 @@ string16 InputMethodUtil::GetInputMethodLongName(
 
 const InputMethodDescriptor* InputMethodUtil::GetInputMethodDescriptorFromId(
     const std::string& input_method_id) const {
-  InputMethodIdToDescriptorMap::const_iterator iter
-      = id_to_descriptor_.find(input_method_id);
-  return (iter == id_to_descriptor_.end()) ? NULL : &(iter->second);
+  InputMethodIdToDescriptorMap::const_iterator iter =
+      id_to_descriptor_.find(input_method_id);
+  if (iter == id_to_descriptor_.end())
+    return NULL;
+  return &(iter->second);
 }
 
 bool InputMethodUtil::GetInputMethodIdsFromLanguageCode(
@@ -534,7 +499,8 @@ void InputMethodUtil::GetFirstLoginInputMethodIds(
     if (kDefaultInputMethodRecommendation[i].locale == language_code &&
         kDefaultInputMethodRecommendation[i].layout == current_layout) {
       out_input_method_ids->push_back(
-          kDefaultInputMethodRecommendation[i].input_method_id);
+          extension_ime_util::GetInputMethodIDByEngineID(
+              kDefaultInputMethodRecommendation[i].engine_id));
       return;
     }
   }
@@ -572,9 +538,7 @@ void InputMethodUtil::GetFirstLoginInputMethodIds(
   }
   // Add the most popular input method ID, if it's different from the
   // current input method.
-  if (most_popular_id != current_input_method.id() &&
-      // TODO(yusukes): Remove this hack when we remove the "english-m" IME.
-      most_popular_id != "english-m") {
+  if (most_popular_id != current_input_method.id()) {
     out_input_method_ids->push_back(most_popular_id);
   }
 }
@@ -602,78 +566,165 @@ void InputMethodUtil::GetLanguageCodesFromInputMethodIds(
   }
 }
 
-std::string InputMethodUtil::GetHardwareInputMethodId() const {
-  const std::string input_method_id = delegate_->GetHardwareKeyboardLayout();
+std::string InputMethodUtil::GetLanguageDefaultInputMethodId(
+    const std::string& language_code) {
+  std::vector<std::string> candidates;
+  GetInputMethodIdsFromLanguageCode(
+      language_code, input_method::kKeyboardLayoutsOnly, &candidates);
+  if (candidates.size())
+    return candidates.front();
+
+  return std::string();
+}
 
-  if (input_method_id.empty()) {
+bool InputMethodUtil::MigrateInputMethods(
+    std::vector<std::string>* input_method_ids) {
+  bool rewritten = false;
+  std::vector<std::string>& ids = *input_method_ids;
+  for (size_t i = 0; i < ids.size(); ++i) {
+    std::string engine_id = ids[i];
+    // Migrates some Engine IDs from VPD.
+    for (size_t j = 0; j < arraysize(kEngineIdMigrationMap); ++j) {
+      size_t pos = engine_id.find(kEngineIdMigrationMap[j][0]);
+      if (pos == 0)
+        engine_id.replace(pos, strlen(kEngineIdMigrationMap[j][0]),
+                          kExtensionIdMigrationMap[j][1]);
+    }
+    std::string id =
+        extension_ime_util::GetInputMethodIDByEngineID(engine_id);
+    // Migrates old ime id's to new ones.
+    for (size_t j = 0; j < arraysize(kExtensionIdMigrationMap); ++j) {
+      size_t pos = id.find(kExtensionIdMigrationMap[j][0]);
+      if (pos != std::string::npos)
+        id.replace(pos, kExtensionIdLen, kExtensionIdMigrationMap[j][1]);
+      if (id != ids[i]) {
+        ids[i] = id;
+        rewritten = true;
+      }
+    }
+  }
+  if (rewritten) {
+    // Removes the duplicates.
+    std::vector<std::string> new_ids;
+    for (size_t i = 0; i < ids.size(); ++i) {
+      if (std::find(new_ids.begin(), new_ids.end(), ids[i]) == new_ids.end())
+        new_ids.push_back(ids[i]);
+    }
+    ids.swap(new_ids);
+  }
+  return rewritten;
+}
+
+void InputMethodUtil::UpdateHardwareLayoutCache() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  hardware_layouts_.clear();
+  hardware_login_layouts_.clear();
+  if (cached_hardware_layouts_.empty())
+    Tokenize(delegate_->GetHardwareKeyboardLayouts(), ",",
+             &cached_hardware_layouts_);
+  hardware_layouts_ = cached_hardware_layouts_;
+  MigrateInputMethods(&hardware_layouts_);
+
+  for (size_t i = 0; i < hardware_layouts_.size(); ++i) {
+    if (IsLoginKeyboard(hardware_layouts_[i]))
+      hardware_login_layouts_.push_back(hardware_layouts_[i]);
+  }
+  if (hardware_layouts_.empty()) {
     // This is totally fine if it's empty. The hardware keyboard layout is
     // not stored if startup_manifest.json (OEM customization data) is not
     // present (ex. Cr48 doen't have that file).
-    return GetFallbackInputMethodDescriptor().id();
+    hardware_layouts_.push_back(GetFallbackInputMethodDescriptor().id());
   }
-  return input_method_id;
+
+  if (hardware_login_layouts_.empty())
+    hardware_login_layouts_.push_back(GetFallbackInputMethodDescriptor().id());
 }
 
-void InputMethodUtil::SetComponentExtensions(
-    const InputMethodDescriptors& imes) {
-  component_extension_ime_id_to_descriptor_.clear();
-  for (size_t i = 0; i < imes.size(); ++i) {
-    const InputMethodDescriptor& input_method = imes.at(i);
-    DCHECK(!input_method.language_codes().empty());
-    const std::string language_code = input_method.language_codes().at(0);
-    id_to_language_code_.insert(
-        std::make_pair(input_method.id(), language_code));
-    id_to_descriptor_.insert(
-        std::make_pair(input_method.id(), input_method));
-  }
+void InputMethodUtil::SetHardwareKeyboardLayoutForTesting(
+    const std::string& layout) {
+  delegate_->SetHardwareKeyboardLayoutForTesting(layout);
+  cached_hardware_layouts_.clear();
+  UpdateHardwareLayoutCache();
 }
 
-InputMethodDescriptor InputMethodUtil::GetFallbackInputMethodDescriptor() {
-  std::vector<std::string> layouts;
-  layouts.push_back("us");
-  std::vector<std::string> languages;
-  languages.push_back("en-US");
-  return InputMethodDescriptor("xkb:us::eng",
-                               "",
-                               layouts,
-                               languages,
-                               true,  // login keyboard.
-                               GURL());  // options page, not available.
+const std::vector<std::string>&
+    InputMethodUtil::GetHardwareInputMethodIds() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  UpdateHardwareLayoutCache();
+  return hardware_layouts_;
 }
 
-void InputMethodUtil::ReloadInternalMaps() {
-  if (supported_input_methods_->size() <= 1) {
-    DVLOG(1) << "GetSupportedInputMethods returned a fallback ID";
-    // TODO(yusukes): Handle this error in nicer way.
-  }
+const std::vector<std::string>&
+    InputMethodUtil::GetHardwareLoginInputMethodIds() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  UpdateHardwareLayoutCache();
+  return hardware_login_layouts_;
+}
 
-  // Clear the existing maps.
-  language_code_to_ids_.clear();
-  id_to_language_code_.clear();
-  id_to_descriptor_.clear();
-  xkb_id_to_descriptor_.clear();
+bool InputMethodUtil::IsLoginKeyboard(const std::string& input_method_id)
+    const {
+  const InputMethodDescriptor* ime =
+      GetInputMethodDescriptorFromId(input_method_id);
+  return ime ? ime->is_login_keyboard() : false;
+}
 
-  for (size_t i = 0; i < supported_input_methods_->size(); ++i) {
-    const InputMethodDescriptor& input_method =
-        supported_input_methods_->at(i);
+void InputMethodUtil::AppendInputMethods(const InputMethodDescriptors& imes) {
+  for (size_t i = 0; i < imes.size(); ++i) {
+    const InputMethodDescriptor& input_method = imes[i];
+    DCHECK(!input_method.language_codes().empty());
     const std::vector<std::string>& language_codes =
         input_method.language_codes();
-    for (size_t i = 0; i < language_codes.size(); ++i) {
-      language_code_to_ids_.insert(
-          std::make_pair(language_codes[i], input_method.id()));
-      // Remember the pairs.
-      id_to_language_code_.insert(
-          std::make_pair(input_method.id(), language_codes[i]));
-    }
-    id_to_descriptor_.insert(
-        std::make_pair(input_method.id(), input_method));
-    if (IsKeyboardLayout(input_method.id())) {
-      xkb_id_to_descriptor_.insert(
-          std::make_pair(input_method.GetPreferredKeyboardLayout(),
-                         input_method));
+    id_to_descriptor_[input_method.id()] = input_method;
+
+    typedef LanguageCodeToIdsMap::const_iterator It;
+    for (size_t j = 0; j < language_codes.size(); ++j) {
+      std::pair<It, It> range =
+          language_code_to_ids_.equal_range(language_codes[j]);
+      It it = range.first;
+      for (; it != range.second; ++it) {
+        if (it->second == input_method.id())
+          break;
+      }
+      if (it == range.second)
+        language_code_to_ids_.insert(
+            std::make_pair(language_codes[j], input_method.id()));
     }
   }
 }
 
+void InputMethodUtil::ResetInputMethods(const InputMethodDescriptors& imes) {
+  // Clear the existing maps.
+  language_code_to_ids_.clear();
+  id_to_descriptor_.clear();
+
+  AppendInputMethods(imes);
+}
+
+void InputMethodUtil::InitXkbInputMethodsForTesting() {
+  cached_hardware_layouts_.clear();
+  ResetInputMethods(*(InputMethodWhitelist().GetSupportedInputMethods()));
+}
+
+const InputMethodUtil::InputMethodIdToDescriptorMap&
+InputMethodUtil::GetIdToDesciptorMapForTesting() {
+  return id_to_descriptor_;
+}
+
+InputMethodDescriptor InputMethodUtil::GetFallbackInputMethodDescriptor() {
+  std::vector<std::string> layouts;
+  layouts.push_back("us");
+  std::vector<std::string> languages;
+  languages.push_back("en-US");
+  return InputMethodDescriptor(
+      extension_ime_util::GetInputMethodIDByEngineID("xkb:us::eng"),
+      "",
+      "US",
+      layouts,
+      languages,
+      true,  // login keyboard.
+      GURL(),  // options page, not available.
+      GURL()); // input view page, not available.
+}
+
 }  // namespace input_method
 }  // namespace chromeos