Play Music Extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Play Music Extension",
  "description": "This extension allows you to map keyboard controls to Google's Play Music.",
  "version": "1.0.2",
  "author": "Matt Gaunt",
  "permissions": [
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/key-handler.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://play.google.com/music/*"
      ],
      "js": [
        "scripts/music-event-handler.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "scripts/bg-messaging-center.js"
    ]
  },
  "browser_action": {
    "default_icon": "images/headphone-logo.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "images/headphone-logo-48.png",
    "128": "images/headphone-logo-128.png",
    "256": "images/headphone-logo-256.png"
  }
}