/usr/share/gconf/schemas/compiz-showrepaint.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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31  | <?xml version="1.0"?>
<gconfschemafile>
  <schemalist>
    <schema>
      <key>/schemas/apps/compiz-1/plugins/showrepaint/screen0/options/toggle_key</key>
      <applyto>/apps/compiz-1/plugins/showrepaint/screen0/options/toggle_key</applyto>
      <owner>compiz-1</owner>
      <type>string</type>
      <default><Super><Alt>r</default>
      <gettext_domain>compiz</gettext_domain>
      <locale name="C">
        <short>Toggle</short>
        <long>Toggle showing of repainted regions.</long>
      </locale>
    </schema>
    <schema>
      <key>/schemas/apps/compiz-1/plugins/showrepaint/screen0/options/intensity</key>
      <applyto>/apps/compiz-1/plugins/showrepaint/screen0/options/intensity</applyto>
      <owner>compiz-1</owner>
      <type>int</type>
      <default>20</default>
      <gettext_domain>compiz</gettext_domain>
      <locale name="C">
        <short>Intensity</short>
        <long>Intensity. (0 - 100)</long>
      </locale>
    </schema>
  </schemalist>
</gconfschemafile>
 |