Add a static version of browser.html's about:newtab for easy testing

[tschneidereit]

r? @metajack

The list of included sites isn't final by any means, of course, but it's what we have in browser.html right now.

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This change is

[Manishearth]

Are we allowed to use these images in this repo?

[tschneidereit]

Are we allowed to use these images in this repo?

We do have them in the browser.html repo, so I'm assuming that has been
checked.

[Ms2ger]

That seems implausible... @metajack?

[tschneidereit]

That seems implausible... @metajack https://github.com/metajack?

I tend to agree. Perhaps we should just not land this for now.

[metajack]

I think this is likely to be an allowed use, but it is easy to check. For example: https://www.youtube.com/yt/brand/using-logo.html lists the rules for YouTube logo usage.

This particular page contains more icons than we will need, so we only need to check the ones that work well in Servo.

[metajack]

As this is no worse that what we're already doing, I'm going to land this so I can do the surgery on it to get it to have the correct tiles.

[metajack]

@bors-servo r+