SkPDF:  Device subclass no longer tracks size.

Change-Id: I13ad631a80d3ca2f4ad5bb2db21d670444650b0f
Reviewed-on: https://skia-review.googlesource.com/153140
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
2 files changed