Add check before freeing op in GrTextureOpList

This now matches the behavior of the GrRenderTargetOpList and is probably behind all the TSAN complaints.

Change-Id: I9a1cc65a893c20e9927d21814227673167f2f675
Reviewed-on: https://skia-review.googlesource.com/141047
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed