Bug 220559 Regression in some open editor performance tests
Verifying build I20080226-1155, it looks like some open editors tests are seriously red: - OpenJavaEditorTest#testOpenEditor3(): between -16.1% and -36% - OpenJavaEditorTest#testOpenEditor4(): between -18.1% and -39.2%
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonNavigator.java
* <li>
	 * <p>
	 * Link with editor support. Allows the user to toggling linking the current
	 * selection with the active editors.
	 * </p>
	 * <li>
	 * <p>
	 * Collapse all. Collapses all expanded nodes.
	 * </p>
	 * <li>
	 * <p>
	 * Select Filters. Provides access to the "Select Filters" dialog that
	 * allows users to enable/disable filters and also the Content Extension
	 * activations.
	 * </p>
	 * </ul>
	 * 
	 * @return The Action Group to be associated with the Common Navigator View
	 *         Part.
	 */
	protected ActionGroup createCommonActionGroup() {
		return new CommonNavigatorActionGroup(this, commonViewer, getLinkHelperService());
	}
	/**
	 * @return The initial input for the viewer. Defaults to
	 *         getSite().getPage().getInput()
	 */
	protected IAdaptable getInitialInput() {
		return getSite().getPage().getInput();
	}