Removes the old ibus based keyboards, and replace them with the ones based on extension IME API.

chromeos/ime/input_methods.txt

 # The list of input methods that we support. The input methods metadata is
 # also defined here. We use this data for the following purposes.
 #
 # 1. Exclude unnecessary input methods. For example, we don't need
 #    "ja:anthy", and "zh:pinyin" engines in ibus-m17n since we have better
 #    alternatives outside of ibus-m17n. Excluding these input methods from
 #    the IBus engine XML files, such as /usr/share/ibus/component/m17n.xml,
 #    makes the startup time of the IBus daemon faster. This filtering is
 #    done using a python script at build time of ibus-m17n.
 #    See crosbug.com/4161 for details.
@@ skipping 41 matching lines @@
 #    * chrome/browser/resources/chromeos/keyboard_overlay_data.js
 #    * chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.cc
 #
 #   If you add an XKB layout which depends on X11's Mod3Mask (e.g. Germany Neo2
 #   XKB layout), you should also update IsMod3UsedByCurrentInputMethod() method
 #   in chrome/browser/ui/ash/event_rewriter.cc. Otherwise, Mod3Mask might be
 #   removed unexpectedly by the rewriter.
 
 # U.S. English
 xkb:us::eng     us      en-US
-xkb:us:intl:eng us(intl)        en-US   
-xkb:us:altgr-intl:eng   us(altgr-intl)  en-US   
-xkb:us:dvorak:eng       us(dvorak)      en-US   
-xkb:us:colemak:eng      us(colemak)     en-US   
-english-m       us      en-US   
+xkb:us:intl:eng us(intl)        en-US
+xkb:us:altgr-intl:eng   us(altgr-intl)  en-US
+xkb:us:dvorak:eng       us(dvorak)      en-US
+xkb:us:colemak:eng      us(colemak)     en-US
+english-m       us      en-US
 # U.S. English entiries have to be above the Dutch entry so that xkb:us:intl:eng
 # will be selected as the default keyboard when the UI language is set to Dutch.
 
 # Dutch
-xkb:be::nld     be      nl      
+xkb:be::nld     be      nl
 # We don't support xkb:nl::nld. See b/4430951.
 
 # French
 xkb:fr::fra     fr      fr
-xkb:be::fra     be      fr      
-xkb:ca::fra     ca      fr      
-xkb:ch:fr:fra   ch(fr)  fr      
+xkb:be::fra     be      fr
+xkb:ca::fra     ca      fr
+xkb:ch:fr:fra   ch(fr)  fr
 xkb:ca:multix:fra ca(multix) fr
 
 # German
-xkb:de::ger     de      de      
-xkb:de:neo:ger  de(neo) de      
-xkb:be::ger     be      de      
-xkb:ch::ger     ch      de      
+xkb:de::ger     de      de
+xkb:de:neo:ger  de(neo) de
+xkb:be::ger     be      de
+xkb:ch::ger     ch      de
 
 # Japanese
 # |kMozcJaInputMethodIds| in ibus_ui_controller.cc should also be updated when
 # a new Mozc Japanese IME for another keyboard layout is added.
-xkb:jp::jpn     jp      ja      
+xkb:jp::jpn     jp      ja
 
 # Russian
-xkb:ru::rus     ru      ru      
-xkb:ru:phonetic:rus     ru(phonetic)    ru      
-
-# Thai
-m17n:th:kesmanee        us      th
-m17n:th:pattachote      us      th
-m17n:th:tis820  us      th
+xkb:ru::rus     ru      ru
+xkb:ru:phonetic:rus     ru(phonetic)    ru
 
 # Traditional Chinese
 m17n:zh:quick   us      zh-TW
 
 # Vietnamese
-m17n:vi:tcvn    us      vi
-m17n:vi:telex   us      vi
-m17n:vi:viqr    us      vi
 m17n:vi:vni     us      vi
 # Note: Since Chrome does not support "get surrounding text" feature yet,
 # Vietnames input methods, except 4 input methods above, in m17n-db should
 # not work fine. The 4 input methods in m17n-db (>= 1.6.0) don't require the
 # feature.
 
 # Korean
 mozc-hangul     kr(kr104)       ko
 xkb:kr:kr104:kor        kr(kr104)       ko
 
-# Arabic
-m17n:ar:kbd     us      ar
-# TODO(yusukes,jshin): Check if we can use ibux-xkb-layouts for Arabic, Hindi,
-# etc.
-
-# Hindi
-m17n:hi:itrans  us      hi
-# Note: the m17n-contrib package has some more Hindi IMEs.
-
-# Farsi (Persian)
-m17n:fa:isiri   us      fa
-
-# Bengali
-m17n:bn:itrans  us      bn
-# TODO(yusukes): Support the following IMEs in m17n-db (unijoy) and
-#   m17n-db-contrib (inscript, probhat).
-# m17n:bn:unijoy        us      bn
-# m17n:bn:inscript      us      bn
-# m17n:bn:probhat       us      bn
-
-# Gujarati
-m17n:gu:itrans  us      gu
-# TODO(yusukes): Support the following IMEs in m17n-db-contrib.
-# m17n:gu:phonetic      us      gu
-# m17n:gu:inscript      us      gu
-
-# Malayalam
-m17n:ml:itrans  us      ml
-# TODO(yusukes): Support the following IMEs in m17n-db-contrib.
-# m17n:ml:inscript      us      ml
-# m17n:ml:mozhi us      ml
-
-# Marathi
-# Note: m17n:mr:itrans is in m17n-db-contrib.
-m17n:mr:itrans  us      mr
-# TODO(yusukes): Support the following IMEs in m17n-db-contrib.
-# m17n:mr:phonetic      us      mr
-# m17n:mr:inscript      us      mr
-
-# Tamil
-m17n:ta:phonetic        us      ta
-m17n:ta:inscript        us      ta
-m17n:ta:tamil99 us      ta
-m17n:ta:itrans  us      ta
-m17n:ta:typewriter      us      ta
-
-# Telugu
-m17n:te:itrans  us      te
-# Kannada
-m17n:kn:itrans  us      kn
-
-# Amharic
-m17n:am:sera    us      am
-
 # Keyboard layouts.
-xkb:br::por     br      pt-BR   
-xkb:bg::bul     bg      bg      
-xkb:bg:phonetic:bul     bg(phonetic)    bg      
-xkb:ca:eng:eng  ca(eng) en-CA   
-xkb:cz::cze     cz      cs      
-xkb:cz:qwerty:cze       cz(qwerty)      cs      
-xkb:ee::est     ee      et      
-xkb:es::spa     es      es      
-xkb:es:cat:cat  es(cat) ca      
-xkb:dk::dan     dk      da      
-xkb:gr::gre     gr      el      
-xkb:il::heb     il      he      
-xkb:latam::spa  latam   es      
-xkb:lt::lit     lt      lt      
-xkb:lv:apostrophe:lav   lv(apostrophe)  lv      
-xkb:hr::scr     hr      hr      
-xkb:gb:extd:eng gb(extd)        en-GB   
-xkb:gb:dvorak:eng       gb(dvorak)      en-GB   
-xkb:fi::fin     fi      fi      
-xkb:hu::hun     hu      hu      
-xkb:it::ita     it      it      
+xkb:br::por     br      pt-BR
+xkb:bg::bul     bg      bg
+xkb:bg:phonetic:bul     bg(phonetic)    bg
+xkb:ca:eng:eng  ca(eng) en-CA
+xkb:cz::cze     cz      cs
+xkb:cz:qwerty:cze       cz(qwerty)      cs
+xkb:ee::est     ee      et
+xkb:es::spa     es      es
+xkb:es:cat:cat  es(cat) ca
+xkb:dk::dan     dk      da
+xkb:gr::gre     gr      el
+xkb:il::heb     il      he
+xkb:latam::spa  latam   es
+xkb:lt::lit     lt      lt
+xkb:lv:apostrophe:lav   lv(apostrophe)  lv
+xkb:hr::scr     hr      hr
+xkb:gb:extd:eng gb(extd)        en-GB
+xkb:gb:dvorak:eng       gb(dvorak)      en-GB
+xkb:fi::fin     fi      fi
+xkb:hu::hun     hu      hu
+xkb:it::ita     it      it
 xkb:is::ice     is      is
-xkb:no::nob     no      nb      
-xkb:pl::pol     pl      pl      
-xkb:pt::por     pt      pt-PT   
-xkb:ro::rum     ro      ro      
-xkb:se::swe     se      sv      
-xkb:sk::slo     sk      sk      
-xkb:si::slv     si      sl      
-xkb:rs::srp     rs      sr      
-xkb:tr::tur     tr      tr      
-xkb:ua::ukr     ua      uk      
+xkb:no::nob     no      nb
+xkb:pl::pol     pl      pl
+xkb:pt::por     pt      pt-PT
+xkb:ro::rum     ro      ro
+xkb:se::swe     se      sv
+xkb:sk::slo     sk      sk
+xkb:si::slv     si      sl
+xkb:rs::srp     rs      sr
+xkb:tr::tur     tr      tr
+xkb:ua::ukr     ua      uk
 xkb:by::bel     by      be
 xkb:am:phonetic:arm     am      hy
 xkb:ge::geo     ge      ka
 xkb:mn::mon     mn      mn
 # TODO(yusukes): Support xkb:latam:deadtilde:spa and/or xkb:latam:nodeadkeys:spa
 # if necessary.