Add some missing includes to sources.

The list of includes available to fiddle is now derived from sources. The
Housekeeper bot now complains of a few missing includes which this adds.

Change-Id: I1b667d285eb756c5201f04e07fe4b6c467793719
Reviewed-on: https://skia-review.googlesource.com/130321
Reviewed-by: Ben Wagner <bungeman@google.com>
1 file changed