Reland "Reland "Add some optimizations to PolyUtils""

This is a reland of 946c37057f2618af7eda34fd6d2dd8625a9e9b61

Original change's description:
> Reland "Add some optimizations to PolyUtils"
> 
> This is a reland of 8bb0db3d07450880d346d808018708416c928657
> 
> Original change's description:
> > Add some optimizations to PolyUtils
> > 
> > * Switch inset/offset code to use a linked list rather than an array
> > * Use std::set to store active edge list for IsSimplePolygon rather than array
> > * Pre-alloc the priority queue for IsSimplePolygon
> > * When adding radial curves, expand the array all at once rather than pushing
> > one at a time.
> > 
> > Bug: skia:
> > Change-Id: I692f8c29c500c41ec1d1be39d924d8a752676bf4
> > Reviewed-on: https://skia-review.googlesource.com/140787
> > Reviewed-by: Robert Phillips <robertphillips@google.com>
> > Commit-Queue: Jim Van Verth <jvanverth@google.com>
> 
> Bug: skia:
> Change-Id: I3f5d42cfb941deab2b28bed020b37ce199e91d3d
> Reviewed-on: https://skia-review.googlesource.com/142200
> Reviewed-by: Robert Phillips <robertphillips@google.com>
> Commit-Queue: Jim Van Verth <jvanverth@google.com>

Bug: skia:
Change-Id: I598d4be9108d009d0f885cfa72bf9197fc286b3a
Reviewed-on: https://skia-review.googlesource.com/142920
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
4 files changed