fix bitcode

looks like the API accepts these implicit bit casts
but the bitcode does not

Change-Id: Ia93bbc13c3c37e8955def7abac5aba5b5e2ead61
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/274069
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>
1 file changed