External package containing skia. https://skia.org/ How to update the tarball: ========================== git clone https://skia.googlesource.com/skia.git cd skia git checkout chrome/mXX id=$(git rev-parse chrome/mXX) git clean -idx rm -rf .git gitignore infra modules/canvaskit resources site cd .. tar cvJf skia-mXX-$id.tar.xz skia (where XX refers to the branch version) And review differences for BUILD.gn and relevant files in gn/ : git diff chrome/mYY..chrome/mXX ./BUILD.gn ./gn Debugging Skia: =============== Note that Skia is always built optimized, unless you use --enable-skia=debug. GrContext sharing: ================== For details about the share-grcontext patch, see vcl/skia/README.