Avoid making new image snapshot in GPU->GPU SkSurface::draw()

Bug: chromium:943561
Change-Id: I4b5cd545fb31bbaaf7828a2a90a88a0bfb179c87
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/202400
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2 files changed