[chrome-gnome-shell] ubuntu: force remove Chrome/Chromium policy files.

[Yuri Konotopov <ykonotopov src gnome org>]

commit d75be791c264e750e977ef2e7e59579dd81881f9
Author: Yuri Konotopov <ykonotopov gmail com>
Date:   Fri Sep 9 00:17:08 2016 +0300

    ubuntu: force remove Chrome/Chromium policy files.
    
    By default Debian/Ubuntu do not removes conffiles under /etc along with
    package. Because of this it's not possible to uninstall web extension
    from browser.
    This change force removal of policy files.
    
    https://github.com/nE0sIghT/chrome-gnome-shell-mirror/issues/12
    https://github.com/nE0sIghT/chrome-gnome-shell-mirror/issues/13

 contrib/ubuntu/changelog |   12 ++++++++++++
 contrib/ubuntu/postrm    |   14 ++++++++++++++
 2 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/contrib/ubuntu/changelog b/contrib/ubuntu/changelog
index 995b3d3..4af2644 100644
--- a/contrib/ubuntu/changelog
+++ b/contrib/ubuntu/changelog
@@ -1,5 +1,17 @@
 chrome-gnome-shell (${PROJECT_VERSION}-${DEBIAN_VERSION}) ${DEBIAN_DISTRO}; urgency=low
 
+  * Version bump
+
+ -- Yuri Konotopov <ykonotopov gmail com>  Mon, 8 Sep 2016 19:23:18 +0300
+
+chrome-gnome-shell (7-0ubuntu6) trusty; urgency=low
+
+  * Force remove policy files with package
+
+ -- Yuri Konotopov <ykonotopov gmail com>  Mon, 8 Sep 2016 19:23:18 +0300
+
+chrome-gnome-shell (7-0ubuntu4) trusty; urgency=low
+
   * Updated build build-time dependencies
   * Added python-gi dependency
   * Initial release
diff --git a/contrib/ubuntu/postrm b/contrib/ubuntu/postrm
new file mode 100755
index 0000000..70f24e5
--- /dev/null
+++ b/contrib/ubuntu/postrm
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+# Force remove policies files.
+# Otherwise it will not be possible to uninstall web extension.
+POLICIES="/etc/chromium/policies/managed/chrome-gnome-shell.json
+/etc/opt/chrome/policies/managed/chrome-gnome-shell.json"
+
+IFS="
+"
+for file in ${POLICIES}; do
+       if [ -e "${file}" ]; then
+               rm "${file}"
+       fi
+done