* gnu/java/awt/peer/gtk/GtkComponentPeer.java,
	jni/gtk-peer/gnu_java_awt_peer_gtk_GtkComponentPeer.c
	(getPreferredSize): Call preferredSize.
	(preferredSize): Call gtkWidgetGetPreferredDimensions.
	(getMinimumSize): Call minimumSize.
	(minimumSize): Call gtkWidgetGetPreferredDimensions.
	(gtkWidgetGetDimensions): Return the peer widget's current size
	request.
	(gtkWidgetGetPreferredDimensions): Return the peer widget's
	natural size request.

From-SVN: r75442