Test Infobar suppress

Testing infobar suppress (bug 1371819)

*** Using a fresh profile with the latest Nightly

1 - set the pref "devtools.chrome.enabled" to true

2 - Sanity check:

Visit the following websites and make sure that the infobar appears:

yandex.ru
chpoking.ru
ok.ru
amazon.com
amazon.co.jp
amazon.fr
twitch.tv
ebay.com
aol.com


Note 1: do not click on the X in the infobar because we don't want to treat this as a dismissal.
Revisit the website to ensure that the infobar is showing every time.

Note 2: the string of the infobar has changed. It now says "This site uses a plugin that may slow Firefox."

*** Changing to the staging blocklist:

3 - Open browser console again to paste and Enter:

Preferences.set("browser.safebrowsing.provider.mozilla.updateURL",Preferences.get("browser.safebrowsing.provider.mozilla.updateURL").replace("shavar.services.mozilla.com/", "shavar.stage.mozaws.net/"));
Preferences.set("browser.safebrowsing.provider.mozilla.nextupdatetime","1");

4 - Restart the browser

5 - Wait a while. You can keep an eye on the pref "browser.safebrowsing.provider.mozilla.nextupdatetime" in about:config.
Once it changes to a big value again, you're good to continue

6 - Sanity check:

- Check that you're now in Week 4 by running the checking instructions below

**** Real test:

7 - Revisit those same websites, and verify that:

- the infobar *does not* appear now
- the "Lego" icon *still* appears in the URL bar
- it's possible to successfully activate Flash by clicking on the Lego icon and allowing it to run





==========  Checking what's the corresponding Week for the blocklist =========

Paste all of the above lines all together in the Browser Console, and press Enter:

function checkWeek() {
  let classifier = Cc['@mozilla.org/url-classifier/dbservice;1']
                     .getService(Ci.nsIURIClassifier);

  let { NetUtil } = Cu.import("resource://gre/modules/NetUtil.jsm", {});
  let table = Services.prefs.getCharPref("urlclassifier.flashSubDocTable");
  
  for (let i = 1;;i++) {
    let url = `https://week${i}.flashstudy.example.com`;
    let uri = NetUtil.newURI(url);
    let result = classifier.classifyLocal(uri, table);
    if (result == "") {
      console.log(`You're in Week ${i-1} of the Flash Shield Study`);
      break;
    }
  }
}
checkWeek();