Convert all coord transforms to high precision

Testing this to see what the performance/quality tradeoff is. This is
known to fix some gradient bugs on Mali, but we want to observe perf and
see if it slows thigs down.

Bug: skia:5654
Change-Id: I988410478e89576b8e81786f49e627915e224d42
Reviewed-on: https://skia-review.googlesource.com/11128
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed