bench clip overhead during recording

BUG=skia:

Change-Id: I739c5a7f44380e1218627b1b6430a03950ae84aa
Reviewed-on: https://skia-review.googlesource.com/9309
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed