[DevTools] An snprintf shim for old VS compat

BUG=

Review-Url: https://codereview.chromium.org/2255153004
Cr-Original-Commit-Position: refs/heads/master@{#413158}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e5f7f49d540a998deef5c2790cf6efa1158f29f1
1 file changed