Cloud9 IDE keybidings for Chromebook ref: http://qiita.com/vochicong/items/92c88c2d200175f6ff39

keybindings.settings

// Edit this keymap file and save to apply.
[
    { "command": "findnext", "keys": { "win": [""] } },
    { "command": "navigate", "keys": { "win": ["Alt-E"] } },
    { "command": "goToNextError", "keys": { "win": [""] } },
    { "command": "tab0", "keys": { "mac": ["Alt-0"] } },
    { "command": "tab1", "keys": { "mac": ["Alt-1"] } },
    { "command": "tab2", "keys": { "mac": ["Alt-2"] } },
    { "command": "tab3", "keys": { "mac": ["Alt-3"] } },
    { "command": "tab4", "keys": { "mac": ["Alt-4"] } },
    { "command": "tab5", "keys": { "mac": ["Alt-5"] } },
    { "command": "tab6", "keys": { "mac": ["Alt-6"] } },
    { "command": "tab7", "keys": { "mac": ["Alt-7"] } },
    { "command": "tab8", "keys": { "mac": ["Alt-8"] } },
    { "command": "tab9", "keys": { "mac": ["Alt-9"] } },
    { "command": "find", "keys": { "win": ["Alt-F"] } },
    { "command": "selectall", "keys": { "win": ["Alt-A"] } }
]