Share Whatever over Google Tone

gistfile1.js

// send whatever message you want over Google Tone
// as far as I can tell, profile images must live on googleusercontent.com
// data.url must look like a url
// setting AUDIBLE_DURATION to 1 will generate no audible sound but result in a successful transmission.
//
// to use: 
// 0. install Google Tone https://chrome.google.com/webstore/detail/google-tone/nnckehldicaciogcbchegobnafnjkcne
// 1. open settings > extentions
// 2. click "options" under Google Tone
// 3. In the Google Tone options, open the developer console and paste the following

var AUDIBLE_ID = 'shoutout_audible';
var INAUDIBLE_ID = 'shoutout_inaudible';
var SUBSCRIBE_ID = 'subscribe_shoutout';
var MESSAGE_TYPE = 'shoutout';

// Events which CopresenceManager exposes.
var VALID_EVENTS = ['sent', 'received', 'unsubscribed', 'error'];

var getPublishId_ = function(audible) {
  return audible ? AUDIBLE_ID : INAUDIBLE_ID;
};

var PUBLISH_TEMPLATE = {
  publish: {
    id: AUDIBLE_ID,
    message: {
      type: MESSAGE_TYPE,
      payload: null // Replace with data.
    },
    timeToLiveMillis: AUDIBLE_DURATION,
    strategies: {
      onlyBroadcast: true,
      audible: true // Replace with whether or not it's audible.
    }
  }
};

var getPublishTemplate_ = function(params) {
  // Params are {audible: boolean, payload: JSON string, timeToLiveMillis: int}.
  params = params || {};
  var payload = params.payload;
  var audible = !!params.audible;
  var timeToLiveMillis = params.timeToLiveMillis;
  if (payload == null) {
    return console.error('No payload specified!');
  }
  var textEncoder = new TextEncoder();
  var obj = JSON.parse(JSON.stringify(PUBLISH_TEMPLATE))
  obj.publish.message.payload = textEncoder.encode(JSON.stringify(payload)).buffer;
  obj.publish.strategies.audible = audible;
  if (timeToLiveMillis) {
    obj.publish.timeToLiveMillis = timeToLiveMillis;
  }
  obj.publish.id = getPublishId_(audible);
  return obj;
};

var AUDIBLE_DURATION = 1750; // 14 * 125.
var INAUDIBLE_DURATION = 5000;  
var data = {
    url: "http://HELLO/",
    name: "HELLO NAME",
    picture: "http://lh5.googleusercontent.com/-mrbGiXcK0HA/VVt9kB9yHtI/AAAAAAAAAl4/f95e0uRPkTE/w1280-h800-no/lol.gif",
  };
  tab = {title: "WHATEVER"}
  if (tab.title) {
    data.title = tab.title;
  }
  var audible = this.getPublishTemplate_({
    payload: data,
    audible: true,
    timeToLiveMillis: AUDIBLE_DURATION
  });
  var inaudible = this.getPublishTemplate_({
    payload: data,
    audible: false,
    timeToLiveMillis: INAUDIBLE_DURATION
  });
  chrome.copresence.execute([inaudible, audible], function(){});