Nicholas Nethercote 9674abc542 Ignore setGState no-ops.
For the document in #2504, 11% of the ops are `setGState` with a
`gStateObj` that is an empty array, which is a no-op. This is possible
because we ignore various setGState keys (OP, OPM, BG, etc).

This change prevents these ops from being inserted into the operator
list.
2014-08-14 20:46:28 -07:00
..
2014-08-08 12:36:29 +02:00
2014-08-14 20:46:28 -07:00
2014-08-10 14:11:04 -05:00
2014-05-29 20:38:50 -05:00
2014-08-07 22:07:20 +02:00