Allow bitmap extraction from HEIF image sequences

b/63633199

Change-Id: I0e86589a485830066fe52ae3a74c18ee7f333a7d
Reviewed-on: https://skia-review.googlesource.com/65883
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Chong Zhang <chz@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
1 file changed