GrTessellator: misc. cleanups and minor tweaks.

Invert some math to remove a negation.

Don't keep a persistent count in EdgeList; we'll test for degenerate
boundaries in boundary_to_aa_mesh().

Make connect() use the top/bottom ordering that new_edge has already
done for us.

Don't add the an edge to the same poly twice when it's easily detectable.

Remove some superfluous variables and intialization.

BUG=skia:

Change-Id: I0efd9ec385d6dfec8950b7acfc6dd25572f667b5
Reviewed-on: https://skia-review.googlesource.com/8784
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
1 file changed