[SkSVGCanvas] Add flag for converting text to paths

Change-Id: I9130518d12acda1a82576a17fa4fa8c34b0618f5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228436
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Reed <reed@google.com>
5 files changed