Add factories to GrSurfaceContext and clean up creation flow.

This CL updates all callers that ending up in GrDrawingManager::makeSurfaceContext
to use the new factory or directly call ctors.

A follow on change will get the rest of the calls which go to
GrDrawingManager::makeRenderTargetContext

Change-Id: I662da654a1ec8b8972c50fe9ce45a9185d4c3dc1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/260901
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
32 files changed