compositor: Move views when outputs are moved

Previously, when an output was moved due to another output being
unplugged, the views on the first output would remain in the same
position.

This patch adds an output_move signal that the views listen too in
order to repostion themselves in the event of an unplug.

Signed-off-by: Zhang, Xiong Y <xiong.y.zhang@intel.com>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
2 files changed