[SVG] Fix application of skewX/skewY attributes

The SkMatrix setSkew functions set the matrix value directly, so we need
to treat the angle according to
https://www.w3.org/TR/SVG11/coords.html#SkewXDefined

Change-Id: I3a47e4e98724ef71f39a00dc2f07c8bf430de747
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/282268
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Auto-Submit: Tyler Denniston <tdenniston@google.com>
1 file changed