Reland x4 "Drawing YUVA images does not flatten for bicubic."

Actually don't snap the other coordinate.

This reverts commit 5575e3c4ea49e6cb5c9e9382dc00f697ed5e63f9.

Change-Id: I7ef5c16ecbccf5131da595d2396243fbdefb4ddf
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/279140
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
6 files changed