cros-disks: Add {group,user}/fuse-fusebox

BUG=chromium:1278510
TEST=display-accts.py --show-free; ensure IDs are no longer available

Change-Id: I53e92354b801f847eb5ded808fc37979c83a36c2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/3328469
Tested-by: Nigel Tao <nigeltao@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Nigel Tao <nigeltao@chromium.org>
diff --git a/profiles/base/accounts/group/fuse-fusebox b/profiles/base/accounts/group/fuse-fusebox
new file mode 100644
index 0000000..a5be495
--- /dev/null
+++ b/profiles/base/accounts/group/fuse-fusebox
@@ -0,0 +1,2 @@
+group:fuse-fusebox
+gid:312
diff --git a/profiles/base/accounts/user/fuse-fusebox b/profiles/base/accounts/user/fuse-fusebox
new file mode 100644
index 0000000..c9db15f
--- /dev/null
+++ b/profiles/base/accounts/user/fuse-fusebox
@@ -0,0 +1,6 @@
+user:fuse-fusebox
+uid:312
+gid:312
+gecos:FUSE-based proxy for Chrome's virtual file systems
+home:/dev/null
+shell:/bin/false