fAddedToCache tidy up

Change-Id: I943dea5a60664ff9fdd93638efab2154c9a9ea30
Reviewed-on: https://skia-review.googlesource.com/c/162101
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
1 file changed