Fix bug in PDF processor tests
Fix bug in PDF processor tests

BUG=skia:

Change-Id: Idb4892603664ef441ec1310736eb0d13d80e405b
Reviewed-on: https://skia-review.googlesource.com/5674
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>
Commit-Queue: Stephan Altmueller <43343ec95731c0e8daa7359daf7f2f3935582b24@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot