fixed ASAN error while compiling .fp files

Bug: skia:
Change-Id: I7242986661c42c43616f42e1dfe01266d10109a3
Reviewed-on: https://skia-review.googlesource.com/150916
Auto-Submit: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2 files changed