ccpr: Don't consider sub-pixel translation for caching on Android

Bug: skia:
Change-Id: I453400bd1ca1f122d9af526f55102e8712119d2b
Reviewed-on: https://skia-review.googlesource.com/135540
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
5 files changed