`aa_translation` is something we inherited from times when
AntiAliasingPainter was a thing. This change replaces it by applying
offset directly to path.
There's no need to have separate display list item for drawing triangle
wave when we could simply use StrokePathUsingColor. By switching to
StrokePathUsingColor we could also reduce painting because it supports
filtering out by bounding box.
Output display list dumps with an indentation level to show balanced
commands. It makes it much easier to see what is happening between e.g.
PushStackingContext and PopStackingContext, or SaveLayer and Restore.
