Well, this is interesting: it looks like Chrome might stop waiting 300ms for potential double-tap-to-zoom events if the site is using a meta viewport declaration that sets the width to device-width.
A good history lesson in rendering engines: KHTML, WebKit, and now, Blink.
Have you thought “There must be a good reason for the blink element.” Well, read on.
The origins of the blink element are fascinating. To nobody's surprise, alcohol was involved.
news @ nature.com - Web users judge sites in the blink of an eye - Potential readers can make snap decisions in just 50 milliseconds.
People enjoy being right, so continuing to use a website that gave a good first impression helps to 'prove' to themselves that they made a good initial decision.