Bug 55090 [Progress] How to show busy in multiple instances of the same view
Currently to get the view busy indicator you have to schedule a job in a workbench part. But what happens when there are multiple instances of a view created, which view should be busy. Ideally, you could instead associate a view type with a job.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
* 
	 * @param structuredSelection
	 * @param reveal
	 */
	public void setSelection(IStructuredSelection structuredSelection, boolean reveal) {
		TableViewer viewer = getViewer();
		
		List newSelection = new ArrayList(structuredSelection.size());
		
		for (Iterator i = structuredSelection.iterator(); i.hasNext();) {
			Object next = i.next();
			if (next instanceof IMarker) {
				try {
					newSelection.add(MarkerList.createMarker((IMarker)next));
				} catch (CoreException e) {
					
				}
			}
		}
		if (viewer != null)
			viewer.setSelection(new StructuredSelection(newSelection), reveal);
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.ui.views.markers.internal.TableView#setContents(java.util.Collection)
	 */
	void setContents(Collection contents, IProgressMonitor mon) {		
		if (withinMarkerLimit(contents.size())) {
			super.setContents(contents, mon);	
		} else {