less clever skipMoveTo logic
less clever skipMoveTo logic

Replace the old, possibly buggy logic with something that I think is too
simple to be wrong: we need to moveTo(pts[0]) if pts[0] is not where we
currently are.

Either the old comments were wrong, or the old code was wrong, or I'm
missing how the two connect.  In any case, this new version of the logic
for skipping moveTo() makes the GM we added to track this bug draw the same
in debug and release builds, where it was quite wrong in release before.

Bug: skia:9331
Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
Change-Id: If7c164f0fc62a371e7009bf12d320cc62cb88ef2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/234001
Reviewed-by: Brian Salomon <61fabaaf0876044aeedfd8e351e485c028d69e7b@google.com>
Commit-Queue: Mike Klein <14574f09dfa9b4e14759b88c3426a495a0e627b0@google.com>

aosp-mirror/platform_external_skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia