[FIX] New screen sharing Chrome extension checking method

[sampaiodiego]

Try to communicate with Chrome extension to see it is installed instead of checking for a cookie (the Chrome extension will not set a cookie anymore).

Chrome extension version 0.3+ accepts this method.

@RocketChat/core

[rodrigok]

Is this working on electron?

[engelgabriel]

@sampaiodiego did you test on Electron?

[geekgonecrazy]

@rodrigok unless i'm missing something I don't think screensharing has ever worked in electron. The extension isnt baked in unless this is a recent change?

[sampaiodiego]

@rodrigok @engelgabriel as you can see on the previous code, it skips the extension checks if you're on electron (by explicitying doing this.navigator !== 'electron').. I kept the same behavior, testing only for chrome and firefox

[rodrigok]

True 😄