Change drawPathWithMaskFilter to drawShapeWithMaskFilter

The caching portion of this (enabled by using GrShapes) is still in:

https://skia-review.googlesource.com/c/skia/+/146767 (Add GPU-side caching of mask-filtered path masks)

I would like to land them separately to assess the perf impact of dropping the path (im)mutability hint.

Change-Id: I584765177f2bb250a449d506d38f21f879fecdc6
Reviewed-on: https://skia-review.googlesource.com/147963
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
8 files changed