KhronosGroup/WebGL — pull request #313 by Oletus (2013-07-03 17:39:48+00:00)
Title: Use absolute, not relative canvas position when logging errors

checkCanvasRectColor used to log position relative to the corner of the
rectangle being checked. Logging absolute canvas position makes more
sense when analyzing errors, so switch to that in the new and 1.0.2
versions of the conformance suite.