Fix Metal row/column confusion, again.

We didn't have any tests which exercised the non-square matrix case
(because such a test requires ES3), so it was silently broken. It's
now fixed. The tests exposed a DIFFERENT Quadro P400 bug which will be
fixed separately.

Change-Id: Icf24acad5ea6f18aea3d8aa5a903e7bea41a5c23
Bug: skia:12443
Commit-Queue: John Stiles <>
Auto-Submit: John Stiles <>
Reviewed-by: Brian Osman <>
3 files changed