Harmonize the style of obsolete protos to match that of chrome_device_settings.proto.

Preparation for sync with server.

BUG=645078

Review-Url: https://chromiumcodereview.appspot.com/2424983002
Cr-Original-Commit-Position: refs/heads/master@{#426434}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: c89efcfde96aafbc938d2ac4309d466a0f0fb31c
1 file changed