Conditionally switch technique for rect::bounds

Testing (for the most part) says the 32bit changes like one technique,
and 64bit machines like another -- so support both.

Change-Id: Idea7d68d7ec4bc2683da3a272ef6756f512e570d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1037136
Reviewed-by: Florin Malita <fmalita@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Mike Reed <mike@reedtribe.org>
1 file changed