Aligns requestAnimationFrame's callback to the w3c specification

[uazo]

Description

In the end, the google team took my changes as they are (and I am glad).
this is the temporary patch until we get there.

Fix for #2370

All submissions

• there are no other open Pull Requests for the same update/change
• Bromite can be built with these changes
• I have tested that the new change works as intended (AVD or physical device will do)

Format

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[csagan5]

In the end, the google team took my changes as they are (and I am glad).

That's great news! Will you also get some credits?

[uazo]

Will you also get some credits?

obviously not... (but you know I don't care)
I would not have been able to create the tests they did, but I saw what they did and I will learn. I saw that there is even a (very complete) framework for blink-related tests, it may be useful to us