Bug 55628 Ctrl+o Filters not persistent when set via view menu
I20040322
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/CustomFiltersActionGroup.java
if (!oldestFirstStack.contains(filter))
				oldestFirstStack.push(filter);
		}
		fLRUFilterIdsStack= oldestFirstStack;
	}
	
	private boolean areUserDefinedPatternsEnabled() {
		return fUserDefinedPatternsEnabled;
	}
	private void setUserDefinedPatternsEnabled(boolean state) {
		fUserDefinedPatternsEnabled= state;
	}
	private void fillToolBar(IToolBarManager tooBar) {
	}
	public void fillViewMenu(IMenuManager viewMenu) {
		/*
		 * Don't change the separator group name.
		 * Using this name ensures that other filters
		 * get contributed to the same group.
		 */
		viewMenu.add(new Separator("filters")); 
		viewMenu.add(new GroupMarker(RECENT_FILTERS_GROUP_NAME));
		viewMenu.add(new ShowFilterDialogAction());
		fMenuManager= viewMenu;
		fMenuListener= new IMenuListener() {
			public void menuAboutToShow(IMenuManager manager) {
				removePreviousLRUFilterActions(manager);
				addLRUFilterActions(manager);
			}
		};