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+This is an import of Skia. See skia/include/core/SkMilestone.h for the milestone number.
+
+To update to a new version of Skia:
+
+- Clone Skia from upstream using the instructions here: https://skia.org/user/download
+- Copy the entire source tree from a Skia clone to mozilla-central/gfx/skia/skia
+- cd gfx/skia && ./generate_mozbuild.py
+
+Once that's done, use git status to view the files that have changed. Keep an eye on GrUserConfig.h
+and SkUserConfig.h as those probably don't want to be overwritten by upstream versions.
+
+This process will be made more automatic in the future.