ChromebookでCrouton+Emacs+Mozcで快適日本語入力 ref: http://qiita.com/acro5piano/items/0497d04577bcc3d36065

file0.sh

# Install Emacs
# 面倒であれば、aptから入れても良い
#sudo apt-get install emacs
cd /usr/local/src
sudo wget http://ftp.jaist.ac.jp/pub/GNU/emacs/emacs-24.5.tar.gz
sudo tar xzvf emacs-24.5.tar.gz && sudo rm emacs-24.5.tar.gz
cd emacs-24.5
./configure --with-x-toolkit=no --with-xpm=no --with-jpeg=no --with-gif=no --with-tiff=no
make
sudo make install

# Mozc本体のインストール
sudo apt-get install emacs-mozc

# mozc.elのインストール
# ここは環境に応じて、Package.elやCaskを使えば良い
mkdir -p ~/.emacs.d/lisp
curl https://raw.githubusercontent.com/google/mozc/master/src/unix/emacs/mozc.el > ~/.emacs.d/lisp/mozc.el

file1.txt

; Add path
(add-to-list 'load-path "~/.emacs.d/lisp")

; Mozc settings
(require 'mozc)
(set-language-environment "Japanese")
(setq default-input-method "japanese-mozc")
(setq mozc-candidate-style 'overlay)

(defun mozc-start()
    (interactive)
    (message "Mozc start")
    (mozc-mode 1))

(defun mozc-end()
    (interactive)
    (message "Mozc end")
    (mozc-mode -1))

; C-j -> Mozc ON
; C-g -> Mozc OFF
(bind-key* ("C-j") 'mozc-start)
(bind-keys :map mozc-mode-map
           ("C-g" . mozc-end)
           ("C-x h" . mark-whole-buffer)
           ("M-b" . backward-word)
           ("M-f" . forward-word)
           ("C-x C-s" . save-buffer))