Move all white-listed input method indicator text from InputMethodUtil to manifests of IME extensions.

BUG=232260
TEST=Verified on linux_chromeos.

Review URL: https://codereview.chromium.org/608183002

Cr-Commit-Position: refs/heads/master@{#297357}

20 files changed, 79 insertions, 142 deletions

diff --git a/chrome/browser/chromeos/input_method/component_extension_ime_manager_impl.cc b/chrome/browser/chromeos/input_method/component_extension_ime_manager_impl.cc
index 0e16247..1aa41a6 100644
--- a/chrome/browser/chromeos/input_method/component_extension_ime_manager_impl.cc
+++ b/chrome/browser/chromeos/input_method/component_extension_ime_manager_impl.cc
@@ -345,6 +345,8 @@ bool ComponentExtensionIMEManagerImpl::ReadEngineComponent(
     return false;
   if (!dict.GetString(extensions::manifest_keys::kName, &out->display_name))
     return false;
+  if (!dict.GetString(extensions::manifest_keys::kIndicator, &out->indicator))
+    out->indicator = "";
 
   // Localizes the input method name.
   if (out->display_name.find("__MSG_") == 0) {
diff --git a/chrome/browser/chromeos/input_method/input_method_util.cc b/chrome/browser/chromeos/input_method/input_method_util.cc
index 69db27c..df5d978 100644
--- a/chrome/browser/chromeos/input_method/input_method_util.cc
+++ b/chrome/browser/chromeos/input_method/input_method_util.cc
@@ -27,41 +27,6 @@
 
 namespace {
 
-// A mapping from an input method id to a string for the language indicator. The
-// 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* engine_id;
-  const char* indicator_text;
-} kMappingFromIdToIndicatorText[] = {
-  // To distinguish from "xkb:jp::jpn"
-  // TODO(nona): Make following variables configurable. http://crbug.com/232260.
-  { "nacl_mozc_us", "\xe3\x81\x82" },
-  { "nacl_mozc_jp", "\xe3\x81\x82" },
-  // For simplified Chinese input methods
-  { "zh-t-i0-pinyin", "\xe6\x8b\xbc" },  // U+62FC
-  { "zh-t-i0-wubi-1986", "\xe4\xba\x94" }, // U+4E94
-  // For traditional Chinese input methods
-  { "zh-hant-t-i0-pinyin", "\xe6\x8b\xbc" },  // U+62FC
-  { "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.
-  { "hangul_ahnmatae", "\xed\x95\x9c" },  // U+D55C
-  { "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 =
-    ARRAYSIZE_UNSAFE(kMappingFromIdToIndicatorText);
-
 // A mapping from an input method id to a resource id for a
 // medium length language indicator.
 // For those languages that want to display a slightly longer text in the
@@ -106,61 +71,6 @@ const struct {
   { "vi", "us", "vkd_vi_tcvn" },
 };
 
-// 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.
@@ -299,11 +209,6 @@ InputMethodUtil::InputMethodUtil(InputMethodDelegate* delegate)
     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() {
@@ -375,47 +280,9 @@ std::string InputMethodUtil::GetInputMethodDisplayNameFromId(
 
 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".
-
-  // 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 (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())) {
-    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,
-  // Thai has 3, Vietnamese has 4. If these input methods could be activated at
-  // the same time, we should do either of the following:
-  //   (1) Add mappings to |kMappingFromIdToIndicatorText|
-  //   (2) Add suffix (1, 2, ...) to |text| when ambiguous.
-
-  if (text.empty()) {
-    const size_t kMaxLanguageNameLen = 2;
-    DCHECK(!input_method.language_codes().empty());
-    const std::string language_code = input_method.language_codes().at(0);
-    text = StringToUpperASCII(base::UTF8ToUTF16(language_code)).substr(
-        0, kMaxLanguageNameLen);
-  }
-  DCHECK(!text.empty()) << input_method.id();
-  return text;
+  // TODO(shuchen): remove this method, as the client can directly use
+  // input_method.GetIndicator().
+  return base::UTF8ToUTF16(input_method.GetIndicator());
 }
 
 base::string16 InputMethodUtil::GetInputMethodMediumName(
diff --git a/chrome/browser/chromeos/input_method/input_method_util.h b/chrome/browser/chromeos/input_method/input_method_util.h
index 36ba5ab..7d31abf4bb 100644
--- a/chrome/browser/chromeos/input_method/input_method_util.h
+++ b/chrome/browser/chromeos/input_method/input_method_util.h
@@ -182,7 +182,6 @@ class InputMethodUtil {
 
   LanguageCodeToIdsMap language_code_to_ids_;
   InputMethodIdToDescriptorMap id_to_descriptor_;
-  std::map<std::string, std::string> xkb_layout_to_indicator_;
 
   typedef base::hash_map<std::string, int> HashType;
   HashType english_to_resource_id_;
diff --git a/chrome/browser/chromeos/input_method/input_method_util_unittest.cc b/chrome/browser/chromeos/input_method/input_method_util_unittest.cc
index ac3201f..0f117a8 100644
--- a/chrome/browser/chromeos/input_method/input_method_util_unittest.cc
+++ b/chrome/browser/chromeos/input_method/input_method_util_unittest.cc
@@ -159,12 +159,13 @@ TEST_F(InputMethodUtilTest, GetInputMethodShortNameTest) {
   }
   {
     InputMethodDescriptor desc =
-        GetDesc(pinyin_ime_id, "us", "zh-CN", "");
+        GetDesc(pinyin_ime_id, "us", "zh-CN", "\xe6\x8b\xbc");
     EXPECT_EQ(base::UTF8ToUTF16("\xe6\x8b\xbc"),
               util_.GetInputMethodShortName(desc));
   }
   {
-    InputMethodDescriptor desc = GetDesc(zhuyin_ime_id, "us", "zh-TW", "");
+    InputMethodDescriptor desc =
+        GetDesc(zhuyin_ime_id, "us", "zh-TW", "\xE6\xB3\xA8");
     EXPECT_EQ(base::UTF8ToUTF16("\xE6\xB3\xA8"),
               util_.GetInputMethodShortName(desc));
   }
diff --git a/chrome/browser/resources/chromeos/braille_ime/manifest.json b/chrome/browser/resources/chromeos/braille_ime/manifest.json
index 8c4c327..3f0f9e1 100644
--- a/chrome/browser/resources/chromeos/braille_ime/manifest.json
+++ b/chrome/browser/resources/chromeos/braille_ime/manifest.json
@@ -18,6 +18,7 @@
       "name": "Braille Keyboard",
       "type": "ime",
       "id": "braille",
+      "indicator": "\u2803\u2817\u2807",  // Unicode of 'brl' in English (and many other) braille codes.
       "language": ["None"],
       "description": "Braille hardware keyboard"
     }
diff --git a/chrome/browser/resources/chromeos/input_method/cangjie_manifest.json b/chrome/browser/resources/chromeos/input_method/cangjie_manifest.json
index 4d2665e..89b5476 100644
--- a/chrome/browser/resources/chromeos/input_method/cangjie_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/cangjie_manifest.json
@@ -16,6 +16,7 @@
     "name": "__MSG_inputmethod_cangjie__",
     "type": "ime",
     "id": "zh-hant-t-i0-cangjie-1987",
+    "indicator": "\u5009",
     "description": "Cangjie",
     "language": ["zh-TW", "zh"],
     "layouts": ["us"]
diff --git a/chrome/browser/resources/chromeos/input_method/google_input_tools_manifest.json b/chrome/browser/resources/chromeos/input_method/google_input_tools_manifest.json
index e46dc51..1c033b4 100644
--- a/chrome/browser/resources/chromeos/input_method/google_input_tools_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/google_input_tools_manifest.json
@@ -24,6 +24,7 @@
       "name": "__MSG_inputmethod_pinyin__",
       "type": "ime",
       "id": "zh-t-i0-pinyin",
+      "indicator": "\u62FC",
       "description": "Pinyin",
       "language": ["zh-CN", "zh"],
       "layouts": ["us"],
@@ -34,6 +35,7 @@
       "name": "__MSG_inputmethod_traditional_pinyin__",
       "type": "ime",
       "id": "zh-hant-t-i0-pinyin",
+      "indicator": "\u62FC",
       "description": "Pinyin for Tranditional Chinese",
       "language": ["zh-TW", "zh"],
       "layouts": ["us"],
@@ -44,6 +46,7 @@
       "name": "__MSG_inputmethod_cangjie__",
       "type": "ime",
       "id": "zh-hant-t-i0-cangjie-1987",
+      "indicator": "\u5009",
       "description": "Cangjie",
       "language": ["zh-TW", "zh"],
       "layouts": ["us"],
@@ -53,6 +56,7 @@
       "name": "__MSG_inputmethod_quick__",
       "type": "ime",
       "id": "zh-hant-t-i0-cangjie-1987-x-m0-simplified",
+      "indicator": "\u901F",
       "description": "Quick",
       "language": ["zh-TW", "zh"],
       "layouts": ["us"],
@@ -62,6 +66,7 @@
       "name": "__MSG_inputmethod_wubi__",
       "type": "ime",
       "id": "zh-t-i0-wubi-1986",
+      "indicator": "\u4E94",
       "description": "Wubi",
       "language": ["zh-CN", "zh"],
       "layouts": ["us"],
@@ -71,6 +76,7 @@
       "name": "__MSG_inputmethod_array__",
       "type": "ime",
       "id": "zh-hant-t-i0-array-1992",
+      "indicator": "\u884C\u5217",
       "description": "Array",
       "language": ["zh-TW", "zh"],
       "layouts": ["us"],
@@ -80,6 +86,7 @@
       "name": "__MSG_inputmethod_dayi__",
       "type": "ime",
       "id": "zh-hant-t-i0-dayi-1988",
+      "indicator": "\u5927\u6613",
       "description": "Dayi",
       "language": ["zh-TW", "zh"],
       "layouts": ["us"],
@@ -89,6 +96,7 @@
       "name": "__MSG_inputmethod_zhuyin__",
       "type": "ime",
       "id": "zh-hant-t-i0-und",
+      "indicator": "\u9177",
       "description": "Zhuyin",
       "language": ["zh-TW", "zh"],
       "layouts": ["us"],
@@ -279,6 +287,7 @@
       "name": "__MSG_inputmethod_mozc_us__",
       "type": "ime",
       "id": "nacl_mozc_us",
+      "indicator": "\u3042",
       "description": "Japanese input method.",
       "language": "ja",
       "layouts": ["us"],
@@ -289,6 +298,7 @@
       "name": "__MSG_inputmethod_mozc_jp__",
       "type": "ime",
       "id": "nacl_mozc_jp",
+      "indicator": "\u3042",
       "description": "Japanese input method.",
       "language": "ja",
       "layouts": ["jp"],
diff --git a/chrome/browser/resources/chromeos/input_method/google_xkb_manifest.json b/chrome/browser/resources/chromeos/input_method/google_xkb_manifest.json
index 9a2b5d0..517b728 100644
--- a/chrome/browser/resources/chromeos/input_method/google_xkb_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/google_xkb_manifest.json
@@ -66,6 +66,7 @@
       "name": "__MSG_keyboard_us_international__",
       "type": "ime",
       "id": "xkb:us:intl:eng",
+      "indicator": "INTL",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(intl)"],
@@ -76,6 +77,7 @@
       "name": "__MSG_keyboard_us_international__",
       "type": "ime",
       "id": "xkb:us:intl:nld",
+      "indicator": "INTL",
       "description": "",
       "language": ["nl"],
       "layouts": ["us(intl)"],
@@ -86,6 +88,7 @@
       "name": "__MSG_keyboard_us_international__",
       "type": "ime",
       "id": "xkb:us:intl:por",
+      "indicator": "INTL",
       "description": "",
       "language": ["pt-BR"],
       "layouts": ["us(intl)"],
@@ -96,6 +99,7 @@
       "name": "__MSG_keyboard_us_extended__",
       "type": "ime",
       "id": "xkb:us:altgr-intl:eng",
+      "indicator": "EXTD",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(altgr-intl)"],
@@ -106,6 +110,7 @@
       "name": "__MSG_keyboard_us_dvorak__",
       "type": "ime",
       "id": "xkb:us:dvorak:eng",
+      "indicator": "DV",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(dvorak)"],
@@ -116,6 +121,7 @@
       "name": "__MSG_keyboard_us_colemak__",
       "type": "ime",
       "id": "xkb:us:colemak:eng",
+      "indicator": "CO",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(colemak)"],
@@ -196,6 +202,7 @@
       "name": "__MSG_keyboard_german_neo_2__",
       "type": "ime",
       "id": "xkb:de:neo:ger",
+      "indicator": "NEO",
       "description": "",
       "language": ["de", "de-DE"],
       "layouts": ["de(neo)"],
@@ -226,6 +233,7 @@
       "name": "__MSG_keyboard_japanese__",
       "type": "ime",
       "id": "xkb:jp::jpn",
+      "indicator": "JA",
       "description": "",
       "language": ["ja"],
       "layouts": ["jp"],
@@ -306,6 +314,7 @@
       "name": "__MSG_keyboard_czech_qwerty__",
       "type": "ime",
       "id": "xkb:cz:qwerty:cze",
+      "indicator": "CS",
       "description": "",
       "language": ["cs"],
       "layouts": ["cz(qwerty)"],
@@ -336,6 +345,7 @@
       "name": "__MSG_keyboard_catalan__",
       "type": "ime",
       "id": "xkb:es:cat:cat",
+      "indicator": "CAS",
       "description": "",
       "language": ["ca"],
       "layouts": ["es(cat)"],
@@ -376,6 +386,7 @@
       "name": "__MSG_keyboard_latin_american__",
       "type": "ime",
       "id": "xkb:latam::spa",
+      "indicator": "LA",
       "description": "",
       "language": ["es", "es-419"],
       "layouts": ["latam"],
@@ -426,6 +437,7 @@
       "name": "__MSG_keyboard_uk_dvorak__",
       "type": "ime",
       "id": "xkb:gb:dvorak:eng",
+      "indicator": "DV",
       "description": "",
       "language": ["en", "en-GB"],
       "layouts": ["gb(dvorak)"],
diff --git a/chrome/browser/resources/chromeos/input_method/hangul_manifest.json b/chrome/browser/resources/chromeos/input_method/hangul_manifest.json
index e66f7bd..b76e76c 100644
--- a/chrome/browser/resources/chromeos/input_method/hangul_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/hangul_manifest.json
@@ -18,6 +18,7 @@
     "name": "__MSG_inputmethod_Hangul_2_Set__",
     "type": "ime",
     "id": "hangul_2set",
+    "indicator": "\uD55C",
     "description": "",
     "language": "ko",
     "layouts": ["us"],
@@ -26,6 +27,7 @@
     "name": "__MSG_inputmethod_Hangul_3_Set_390__",
     "type": "ime",
     "id": "hangul_3set390",
+    "indicator": "\uD55C",
     "description": "",
     "language": "ko",
     "layouts": ["us"],
@@ -34,6 +36,7 @@
     "name": "__MSG_inputmethod_Hangul_3_Set_Final__",
     "type": "ime",
     "id": "hangul_3setfinal",
+    "indicator": "\uD55C",
     "description": "",
     "language": "ko",
     "layouts": ["us"],
@@ -42,6 +45,7 @@
     "name": "__MSG_inputmethod_Hangul_3_Set_No_Shift__",
     "type": "ime",
     "id": "hangul_3setnoshift",
+    "indicator": "\uD55C",
     "description": "",
     "language": "ko",
     "layouts": ["us"],
@@ -50,6 +54,7 @@
     "name": "__MSG_inputmethod_Hangul_Romaja__",
     "type": "ime",
     "id": "hangul_romaja",
+    "indicator": "\uD55C",
     "description": "",
     "language": "ko",
     "layouts": ["us"],
@@ -58,6 +63,7 @@
     "name": "__MSG_inputmethod_Hangul_Ahnmatae__",
     "type": "ime",
     "id": "hangul_ahnmatae",
+    "indicator": "\uD55C",
     "description": "",
     "language": "ko",
     "layouts": ["us"],
diff --git a/chrome/browser/resources/chromeos/input_method/mozc_manifest.json b/chrome/browser/resources/chromeos/input_method/mozc_manifest.json
index 3539f10..6bce93f 100644
--- a/chrome/browser/resources/chromeos/input_method/mozc_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/mozc_manifest.json
@@ -18,6 +18,7 @@
     "name": "__MSG_inputmethod_mozc_us__",
     "type": "ime",
     "id": "nacl_mozc_us",
+    "indicator": "\u3042",
     "description": "Japanese input method.",
     "language": "ja",
     "layouts": ["us"]
@@ -25,6 +26,7 @@
     "name": "__MSG_inputmethod_mozc_jp__",
     "type": "ime",
     "id": "nacl_mozc_jp",
+    "indicator": "\u3042",
     "description": "Japanese input method.",
     "language": "ja",
     "layouts": ["jp"]
diff --git a/chrome/browser/resources/chromeos/input_method/pinyin_manifest.json b/chrome/browser/resources/chromeos/input_method/pinyin_manifest.json
index 82adbba..0030aef 100644
--- a/chrome/browser/resources/chromeos/input_method/pinyin_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/pinyin_manifest.json
@@ -17,6 +17,7 @@
     "name": "__MSG_inputmethod_pinyin__",
     "type": "ime",
     "id": "zh-t-i0-pinyin",
+    "indicator": "\u62FC",
     "description": "Pinyin",
     "language": ["zh-CN", "zh"],
     "layouts": ["us"]
diff --git a/chrome/browser/resources/chromeos/input_method/xkb_manifest.json b/chrome/browser/resources/chromeos/input_method/xkb_manifest.json
index f9a9206..71187ba 100644
--- a/chrome/browser/resources/chromeos/input_method/xkb_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/xkb_manifest.json
@@ -56,6 +56,7 @@
       "name": "__MSG_keyboard_us_international__",
       "type": "ime",
       "id": "xkb:us:intl:eng",
+      "indicator": "INTL",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(intl)"],
@@ -65,6 +66,7 @@
       "name": "__MSG_keyboard_us_international__",
       "type": "ime",
       "id": "xkb:us:intl:nld",
+      "indicator": "INTL",
       "description": "",
       "language": ["nl"],
       "layouts": ["us(intl)"],
@@ -74,6 +76,7 @@
       "name": "__MSG_keyboard_us_international__",
       "type": "ime",
       "id": "xkb:us:intl:por",
+      "indicator": "INTL",
       "description": "",
       "language": ["pt-BR"],
       "layouts": ["us(intl)"],
@@ -83,6 +86,7 @@
       "name": "__MSG_keyboard_us_extended__",
       "type": "ime",
       "id": "xkb:us:altgr-intl:eng",
+      "indicator": "EXTD",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(altgr-intl)"],
@@ -92,6 +96,7 @@
       "name": "__MSG_keyboard_us_dvorak__",
       "type": "ime",
       "id": "xkb:us:dvorak:eng",
+      "indicator": "DV",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(dvorak)"],
@@ -101,6 +106,7 @@
       "name": "__MSG_keyboard_us_colemak__",
       "type": "ime",
       "id": "xkb:us:colemak:eng",
+      "indicator": "CO",
       "description": "",
       "language": ["en", "en-US"],
       "layouts": ["us(colemak)"],
@@ -173,6 +179,7 @@
       "name": "__MSG_keyboard_german_neo_2__",
       "type": "ime",
       "id": "xkb:de:neo:ger",
+      "indicator": "NEO",
       "description": "",
       "language": ["de", "de-DE"],
       "layouts": ["de(neo)"],
@@ -200,6 +207,7 @@
       "name": "__MSG_keyboard_japanese__",
       "type": "ime",
       "id": "xkb:jp::jpn",
+      "indicator": "JA",
       "description": "",
       "language": ["ja"],
       "layouts": ["jp"],
@@ -272,6 +280,7 @@
       "name": "__MSG_keyboard_czech_qwerty__",
       "type": "ime",
       "id": "xkb:cz:qwerty:cze",
+      "indicator": "CS",
       "description": "",
       "language": ["cs"],
       "layouts": ["cz(qwerty)"],
@@ -299,6 +308,7 @@
       "name": "__MSG_keyboard_catalan__",
       "type": "ime",
       "id": "xkb:es:cat:cat",
+      "indicator": "CAS",
       "description": "",
       "language": ["ca"],
       "layouts": ["es(cat)"],
@@ -335,6 +345,7 @@
       "name": "__MSG_keyboard_latin_american__",
       "type": "ime",
       "id": "xkb:latam::spa",
+      "indicator": "LA",
       "description": "",
       "language": ["es", "es-419"],
       "layouts": ["latam"],
@@ -380,6 +391,7 @@
       "name": "__MSG_keyboard_uk_dvorak__",
       "type": "ime",
       "id": "xkb:gb:dvorak:eng",
+      "indicator": "DV",
       "description": "",
       "language": ["en", "en-GB"],
       "layouts": ["gb(dvorak)"],
diff --git a/chrome/browser/resources/chromeos/input_method/zhuyin_manifest.json b/chrome/browser/resources/chromeos/input_method/zhuyin_manifest.json
index 0c3a5e5..c574bb2 100644
--- a/chrome/browser/resources/chromeos/input_method/zhuyin_manifest.json
+++ b/chrome/browser/resources/chromeos/input_method/zhuyin_manifest.json
@@ -17,6 +17,7 @@
     "name": "__MSG_inputmethod_zhuyin__",
     "type": "ime",
     "id": "zh-hant-t-i0-und",
+    "indicator": "\u9177",
     "description": "Zhuyin",
     "language": ["zh-TW", "zh"],
     "layouts": ["us"]
diff --git a/chromeos/ime/component_extension_ime_manager.cc b/chromeos/ime/component_extension_ime_manager.cc
index feb0347..5454a94 100644
--- a/chromeos/ime/component_extension_ime_manager.cc
+++ b/chromeos/ime/component_extension_ime_manager.cc
@@ -154,7 +154,7 @@ input_method::InputMethodDescriptors
           input_method::InputMethodDescriptor(
               input_method_id,
               ime.display_name,
-              std::string(), // TODO(uekawa): Set short name.
+              ime.indicator,
               layouts,
               ime.language_codes,
               // Enables extension based xkb keyboards on login screen.
diff --git a/chromeos/ime/component_extension_ime_manager.h b/chromeos/ime/component_extension_ime_manager.h
index 98e0bbc..0fcaded 100644
--- a/chromeos/ime/component_extension_ime_manager.h
+++ b/chromeos/ime/component_extension_ime_manager.h
@@ -24,6 +24,7 @@ struct CHROMEOS_EXPORT ComponentExtensionEngine {
   ~ComponentExtensionEngine();
   std::string engine_id;  // The engine id.
   std::string display_name;  // The display name.
+  std::string indicator;  // The indicator text.
   std::vector<std::string> language_codes;  // The engine's language(ex. "en").
   std::string description;  // The engine description.
   std::vector<std::string> layouts;  // The list of keyboard layout of engine.
diff --git a/chromeos/ime/extension_ime_util.cc b/chromeos/ime/extension_ime_util.cc
index ee37cae..bc0d078 100644
--- a/chromeos/ime/extension_ime_util.cc
+++ b/chromeos/ime/extension_ime_util.cc
@@ -116,8 +116,10 @@ bool IsMemberOfExtension(const std::string& input_method_id,
 }
 
 bool IsKeyboardLayoutExtension(const std::string& input_method_id) {
-  std::string prefix = kComponentExtensionIMEPrefix;
-  return StartsWithASCII(input_method_id, prefix + kXkbExtensionId, true);
+  if (IsComponentExtensionIME(input_method_id))
+    return StartsWithASCII(GetComponentIDByInputMethodID(input_method_id),
+                           "xkb:", true);
+  return false;
 }
 
 std::string MaybeGetLegacyXkbId(const std::string& input_method_id) {
diff --git a/chromeos/ime/input_method_descriptor.cc b/chromeos/ime/input_method_descriptor.cc
index 49b0360..6b9f42b 100644
--- a/chromeos/ime/input_method_descriptor.cc
+++ b/chromeos/ime/input_method_descriptor.cc
@@ -8,6 +8,8 @@
 
 #include "base/logging.h"
 #include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
+#include "chromeos/ime/extension_ime_util.h"
 #include "url/gurl.h"
 
 namespace chromeos {
@@ -38,6 +40,18 @@ std::string InputMethodDescriptor::GetPreferredKeyboardLayout() const {
   return keyboard_layouts_.empty() ? "us" : keyboard_layouts_[0];
 }
 
+std::string InputMethodDescriptor::GetIndicator() const {
+  // If indicator is empty, use the first two character in its preferred
+  // keyboard layout or language code.
+  if (indicator_.empty()) {
+    if (extension_ime_util::IsKeyboardLayoutExtension(id_))
+      return StringToUpperASCII(GetPreferredKeyboardLayout().substr(0, 2));
+    DCHECK(language_codes_.size() > 0);
+    return StringToUpperASCII(language_codes_[0].substr(0, 2));
+  }
+  return indicator_;
+}
+
 InputMethodDescriptor::InputMethodDescriptor() {
 }
 
diff --git a/chromeos/ime/input_method_descriptor.h b/chromeos/ime/input_method_descriptor.h
index ab7cfb4..e11b0eb 100644
--- a/chromeos/ime/input_method_descriptor.h
+++ b/chromeos/ime/input_method_descriptor.h
@@ -47,6 +47,9 @@ class CHROMEOS_EXPORT InputMethodDescriptor {
   // Returns preferred keyboard layout.
   std::string GetPreferredKeyboardLayout() const;
 
+  // Returns the indicator text of this input method.
+  std::string GetIndicator() const;
+
  private:
   // An ID that identifies an input method engine (e.g., "t:latn-post",
   // "pinyin", "hangul").
diff --git a/extensions/common/manifest_constants.cc b/extensions/common/manifest_constants.cc
index acb9a9e..7ae2c48 100644
--- a/extensions/common/manifest_constants.cc
+++ b/extensions/common/manifest_constants.cc
@@ -56,6 +56,7 @@ const char kImeOptionsPage[] = "options_page";
 const char kImport[] = "import";
 const char kIncognito[] = "incognito";
 const char kIncludeGlobs[] = "include_globs";
+const char kIndicator[] = "indicator";
 const char kInputComponents[] = "input_components";
 const char kInputView[] = "input_view";
 const char kIsolation[] = "app.isolation";
diff --git a/extensions/common/manifest_constants.h b/extensions/common/manifest_constants.h
index 507beb5..497d008 100644
--- a/extensions/common/manifest_constants.h
+++ b/extensions/common/manifest_constants.h
@@ -59,6 +59,7 @@ extern const char kImeOptionsPage[];
 extern const char kImport[];
 extern const char kIncognito[];
 extern const char kIncludeGlobs[];
+extern const char kIndicator[];
 extern const char kInputComponents[];
 extern const char kInputView[];
 extern const char kIntentDisposition[];