Bug 232851 Performance regression: OpenCloseViewTest#showView:ResourceNavigator
3.4 HEAD: Elapsed : 624ms (95% in [621ms, 628ms]) Measurable effect: 6ms (0.4 SDs) CPU Time: 576ms (95% in [564ms, 589ms]) Measurable effect: 25ms (0.4 SDs)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigator.java
viewer.setUseHashlookup(true);
        initContentProvider(viewer);
        initLabelProvider(viewer);
        initFilters(viewer);
        initListeners(viewer);
        return viewer;
    }
    /**
     * Sets the content provider for the viewer.
     * 
     * @param viewer the viewer
     * @since 2.0
     */
    protected void initContentProvider(TreeViewer viewer) {
        viewer.setContentProvider(new WorkbenchContentProvider());
    }
    /**
     * Sets the label provider for the viewer.
     * 
     * @param viewer the viewer
     * @since 2.0
     */
    protected void initLabelProvider(TreeViewer viewer) {
        viewer.setLabelProvider(new DecoratingLabelProvider(
                new WorkbenchLabelProvider(), getPlugin().getWorkbench()
                        .getDecoratorManager().getLabelDecorator()));
    }
    /**
     * Adds the filters to the viewer.
     *