update SkPaint size sanity check

I counted twice... there are 7 pointers and 8 4-byte things.

Change-Id: I106a0f1c1bf9ee580e7b04afc763b2ec977fca3c
Reviewed-on: https://skia-review.googlesource.com/150120
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
1 file changed