This file is indexed.

/usr/share/gconf/schemas/compiz-regex.schemas is in compiz-gnome 1:0.9.11+14.04.20140409-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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<?xml version="1.0"?>
<gconfschemafile>
  <schemalist/>
</gconfschemafile>