SkImageInfo: MakeN32*() avoids extra ref/deref

Change-Id: I8d5c07222bd1cd1bea4fc0060d07a29786f8e254
Reviewed-on: https://skia-review.googlesource.com/134784
Commit-Queue: Hal Canary <halcanary@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
1 file changed