Bug 305389 EclipsePartService: Add getInputParts(String inputUri): Collection
Add support for the new InputPart-Type with Input-URI
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/internal/PartServiceImpl.java
IEclipseContext eventsContext = ((ObjectProviderContext) provider).getContext();
					IEclipseContext childContext = (IEclipseContext) eventsContext
							.getLocal(IContextConstants.ACTIVE_CHILD);
					if (childContext != null) {
						rootContainer = (MElementContainer<MUIElement>) childContext
								.get(MWindow.class.getName());
					}
					return true;
				}
			}, null);
		}
	}
	@PreDestroy
	void preDestroy() {
		constructed = false;
		eventBroker.unsubscribe(selectedHandler);
	}
	private void firePartActivated(MPart part) {
		for (Object listener : listeners.getListeners()) {
			((IPartListener) listener).partActivated(part);
		}
	}
	private void firePartDeactivated(MPart part) {
		for (Object listener : listeners.getListeners()) {
			((IPartListener) listener).partDeactivated(part);
		}
	}
	private void firePartHidden(MPart part) {
		for (Object listener : listeners.getListeners()) {
			((IPartListener) listener).partHidden(part);