added missing <inttypes.h> include

Bug: skia:
Change-Id: I24f556c791f5a8ca295f6dc88dbf5532a7a9f688
Reviewed-on: https://skia-review.googlesource.com/11008
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
1 file changed