Revert "Don't send strike with no pending glyphs"

This reverts commit 9e081d164c816bdf6df9c1f11b6928dab08c753c.

Reason for revert: Spike in cache misses: chromium:996636

BUG=chromium:996636

Original change's description:
> Don't send strike with no pending glyphs
>
> This changes tracks the strikes to send as a set of pointers
> to SkGlyphCacheState instead of as descriptors. This removes a descriptor
> lookup allowing rapid calculation of the actual number of strikes to send.
> Knowing the number of strikes with changes allows us to remove sending a boolean
> if strike has no pending glyphs.
>
> Change-Id: Id173336e238daebc19564248a818eb9dbdbe6db6
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/235827
> Reviewed-by: Mike Klein <mtklein@google.com>
> Reviewed-by: Khushal Sagar <khushalsagar@chromium.org>
> Commit-Queue: Herb Derby <herb@google.com>

TBR=mtklein@google.com,herb@google.com,khushalsagar@chromium.org,khushalsagar@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I0e0c8877be8d08be4b62a029005889068b6e4cc3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/236351
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>
2 files changed