Android: Fix the signature for setOnInfoListener.

The argument part of the signature should be OnInfoListener and not
OnErrorListener.

Change-Id: I735fe1b0338b66c2f729254ed9e3251136781cbe
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Android: Use Q_GLOBAL_STATIC instead of a static QMap

Change-Id: I7b65e0874051c4ef504914a0bd66e8471ec34fa7
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>