tree 6da8cfc971f07e763c018a117d1e2da1d2fc813b
parent 40ef48580b8bd47355ccf05e43d8032c10a77bbe
author jvanverth <jvanverth@google.com> 1462220688 -0700
committer Commit bot <commit-bot@chromium.org> 1462220688 -0700

Make sure that Vulkan debug callback ptr is non-null.

BUG=skia:5244
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1935163002

Review-Url: https://codereview.chromium.org/1935163002