Bug 97921 [typing] CompilationUnitEditor.TabConvertor should use project dependent formatter settings
with 3.1 RC1, In the code formatter I set tab policy to spaces only, indentation size = 2, and tab size = 8. when I hit the tab key, 2 spaces are added to the line instead of going to an 8 space (tab) boundary.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
*/
	protected final boolean isActiveEditor() {
		IWorkbenchWindow window= getSite().getWorkbenchWindow();
		IWorkbenchPage page= window.getActivePage();
		if (page == null)
			return false;
		IEditorPart activeEditor= page.getActiveEditor();
		return activeEditor != null && activeEditor.equals(this);
	}
	/**
	 * Adds the given listener.
	 * Has no effect if an identical listener was not already registered.
	 *
	 * @param listener	The reconcile listener to be added
	 * @since 3.0
	 */
	final void addReconcileListener(IJavaReconcilingListener listener) {
		synchronized (fReconcilingListeners) {
			fReconcilingListeners.add(listener);
		}
	}
	/**
	 * Removes the given listener.
	 * Has no effect if an identical listener was not already registered.
	 *
	 * @param listener	the reconcile listener to be removed
	 * @since 3.0
	 */
	final void removeReconcileListener(IJavaReconcilingListener listener) {
		synchronized (fReconcilingListeners) {