Fix for BackSynchronizer related crash on windows
Fix for BackSynchronizer related crash on windows

On windows platform, the definition of a function pointer to a member
of a given class requires visibility on the header of that class,
otherwize memory corruption may occur at deletion time.

Change-Id: Ifa4943ef0f3e02542c6641959cf67384103bfc69
Signed-off-by: Patrick Benavoli <3a927494dd8fd4dfe8fa256992840dc4ba515be1@intel.com>

geekboxzone/mmallow_external_parameter-framework,geekboxzone/mmallow_external_parameter-framework,geekboxzone/mmallow_external_parameter-framework