Make flag values in GrResourceProvider and GrTextureProvider consistent

BUG=chromium:665673

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5602

Change-Id: I41522aa24cd4b4a7e085132dd9bcbfdd66bd9617
Reviewed-on: https://skia-review.googlesource.com/5602
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
3 files changed