FontDatabase is leaked by many plugins (e.g. xcb, directfb)

Plugins don't store the fontdatabase in a QScopedPointer and do not manually manage the memory. I can think of:

a.) Make QPlatformIntegration and QPlatformDatabase a QObject and provide parent/child relationship
b.) Make all plugins use QScopedPointer
c.) Put a QScopedPointer into the base class and have a virtual doCreateFont... creates and assigns to the common pointer