vPause - vk.com player hotkeys

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "vPause - vk.com player hotkeys",
  "developer": {
    "name": "Pavel Shut",
    "url": "http://vk.com/spadarshut"
  },
  "description": "__MSG_extensionDecription__",
  "default_locale": "ru",
  "manifest_version": 2,
  "version": "4.1.2",
  "icons": {
    "48": "img/icon_48.png",
    "128": "img/icon_128.png"
  },
  "browser_action": {
    "default_icon": "img/btn_play.png",
    "default_title": "vPause"
  },
  "options_page": "options.html",
  "background": {
    "scripts": [
      "js/vpause-background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "js/vpause-contentscript.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "include_globs": [
        "*"
      ],
      "exclude_globs": [],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "js/shortcut.js",
    "js/vpause-injected-hotkeys.js",
    "js/vpause-injected-listeners.js"
  ],
  "permissions": [
    "tabs",
    "*://*/*",
    "storage",
    "http://*/*"
  ],
  "commands": {
    "togglePlay": {
      "description": "__MSG_labelHotkeyPlayPause__",
      "global": true
    },
    "prevTrack": {
      "description": "__MSG_labelHotkeyPrevTrack__",
      "global": true
    },
    "nextTrack": {
      "description": "__MSG_labelHotkeyNextTrack__",
      "global": true
    },
    "makeItLouder": {
      "description": "__MSG_labelHotkeyVolUp__",
      "global": true
    },
    "makeItQuieter": {
      "description": "__MSG_labelHotkeyVolDown__",
      "global": true
    },
    "toggleRepeat": {
      "description": "__MSG_labelToggleRepeat__",
      "global": true
    },
    "toggleMute": {
      "description": "__MSG_labelToggleMute__",
      "global": true
    },
    "toggleShuffle": {
      "description": "__MSG_labelToggleShuffle__",
      "global": true
    },
    "addToMyMusic": {
      "description": "__MSG_labelAddSong__",
      "global": true
    },
    "seekForward": {
      "description": "__MSG_labelSeekForward__",
      "global": true
    },
    "seekBack": {
      "description": "__MSG_labelSeekBack__",
      "global": true
    }
  }
}