Fix paint filter quality in draw_image_set GM

Outer SkPaint paint variable was shadowed by inner, so the
experimental_DrawEdgeAAImageSet calls always used nearest-neighbor
filtering.

Change-Id: I0a44ba9056c553c58559cf503d33df6b7f9e7019
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/203803
Auto-Submit: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
1 file changed