Make GrAppliedClip friendless

GrAppliedClip is a pretty amiable class but not so good about setting boundaries. It is probably for the best that it breaks things off with GrClipMaskManager before the drama of https://codereview.chromium.org/1988923002/ (Declassify GrClipMaskManager and Remove GrRenderTarget and GrDrawTarget from GrPipelineBuilder) begins.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1993263002

Review-Url: https://codereview.chromium.org/1993263002
4 files changed