* components/adapter/nautilus-adapter-progressive-load-strategy.c:
	Increased chunk-size to 32k in an unsuccesful attempt to improve
	the situation with regards to fix bug 3256 (attempt to view huge
	text file is very slow). It did not help which leads me to believe
	the problem is with the way the text control handles progressive
	updates.

	Fix bug 2180 (switching from icon view to list view, the zoom
	control disappears and then reappears).

	* src/nautilus-window-manage-views.c (load_content_view,
	zoom_level_changed_callback): Don't show and hide the zoom control
	at various times. Instead, let
	`nautilus_window_set_content_view_widget' establish the right
	visibility state when we finally enable the widget. This way, the
	zoom control won't ever disappear and reappear when switching
	between two different zoomable views.
	* src/nautilus-window.c (nautilus_window_set_content_view_widget):
	Set the zoom control to the right visibility state when setting
	the new widget.