Add missing recordingContext override to SkPaintFilterCanvas

This should fix the gpu-specific slides in Viewer.

Change-Id: I3ff069005bfe3639eb9608223b13c64f4c28c396
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/301441
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed