Feature request: latency test

[fadden]

Some sort of latency exerciser would be handy. Examples include "pointer trails" to see how far behind the touch input we get, and a big sliding box that tries to move with your finger. For the latter I'm thinking of something like Google Maps but with just a simple texture instead of network tiles.

The goal is to have a test app that shows the benefits of DispSync and eglPresentationTimeANDROID.

Background: http://stackoverflow.com/questions/26317132/minimize-android-glsurfaceview-lag/

[alexcohn]

The reference above is caused by a bug in github x-ref procedure. Can you remove this false reference?