[[FEAT]] Added window globals and DOM interfaces to browser

[JuanFML]

[[FEAT]] Added window globals and DOM interfaces to browser

Added DOM interfaces and Window globals into the exports.browser object in vars.js. In order to cover more globals .

Fixes #3495

[coveralls]

Coverage remained the same at 100.0% when pulling 9ef48d1 on JuanFML:add-globals-browser into 0c240e6 on jshint:master.

[JuanFML]

Can somebody help me with the errors? I don't understand where the problem is.

[jugglinmike]

Thanks for the patch! The build errors were due to an unrelated problem with
one of this project's transitive dependencies. I just fixed
that, though, so things should
work as intended if you push another commit to this branch.

As for this patch, it introduces a good deal more bindings than what has been
requested in gh-3495. Some of them, like toolbar, are non-standard and
deprecated. Other bindings, like WindowGlobalScope are not defined by any
browser. JSHint ought to issue warnings when either of those kinds of bindings
are used, so they shouldn't be listed in the vars.js file.

In order to avoid confusion like this, we've taken to annotating new additions
with code comments which explain where the bindings have been standardized. If
you could do the same here, it would be more clear why each of the new bindings
is necessary.

[jugglinmike]

@JuanFML It's been a few months since we heard from you. Are you still interested in persuing this patch?

[JuanFML]

Hello @jugglinmike I am sorry I haven’t been able to give it some time, if anyone wants to finish it or should we close the PR?

[Ashesh3]

@jugglinmike @JuanFML I would like to take this up and finish it. Before i proceed though, i would want to confirm how exactly you want the new additions to be annotated?

AudioTrack, // https://html.spec.whatwg.org/multipage/media.html#audiotrack
DOMParser, // https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparser
.....

Is it like above or

//Taken from https://html.spec.whatwg.org/multipage/indices.html#all-interfaces
AudioTrack,
DOMParser
....

Or like this? Or any other format. Please let me know and i would try to finish this PR.

[jugglinmike]

The former approach seems good to me!