This is blocking the revert of the geometric constant folding 
patch, which is breaking gpu_unittests and blocking the roll.

BUG=angleproject:817

This reverts commit b07aba07.

Change-Id: Ia00fc45b1ddd9d3c079742dea0627aa12304f93b
Reviewed-on: https://chromium-review.googlesource.com/275321Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>