[DevTools] Fix V8 inspector compilation on SmartOS

SmartOS does not have snprintf in std namespace (even though it has the
headers). This change imports global symbol into std namespace.

R=dgozman@chromium.org, pfeldman@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2262403002
Cr-Original-Commit-Position: refs/heads/master@{#413629}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 202452fc4e5633afadb5ef5193efc20bbc3cc22f
1 file changed