Only perform SkSafeRef race detection if on android framework

Change-Id: If524a02e916d711057d6f2102efb0404b1c0b988
Reviewed-on: https://skia-review.googlesource.com/10036
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
1 file changed