Implement drawBlurredRRect for Ganesh
`Device::drawBlurredRRect` is a subset of the functionality of the
helper `GrBlurUtils::direct_filter_mask` without the use of the mask
filter itself. The GrBlurUtils helper funtions MakeCircleBlur,
MakeRectBlur, and MakeRRectBlur are exposed.
Bug: 304823483
Change-Id: I79bec5640572c6dac4dca762de262dc39291adbc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/995236
Auto-Submit: Daniel Dilan <danieldilan@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Daniel Dilan <danieldilan@google.com>
4 files changed
