Browser.getVersion

{
  "name": "getVersion",
  "description": "Returns version information.",
  "returns": [
    {
      "name": "protocolVersion",
      "type": "string",
      "description": "Protocol version."
    },
    {
      "name": "product",
      "type": "string",
      "description": "Product name."
    },
    {
      "name": "revision",
      "type": "string",
      "description": "Product revision."
    },
    {
      "name": "userAgent",
      "type": "string",
      "description": "User-Agent."
    },
    {
      "name": "jsVersion",
      "type": "string",
      "description": "V8 version."
    }
  ]
}