Bug 325836 EPartService's createSharedPart(*) methods should not need its MWindow parameter
The service should only be interacting with its own window and not some other random window.
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/workbench/modeling/EPartService.java
* @param part
	 *            the part to hide
	 */
	public void hidePart(MPart part);
	/**
	 * Hides the given part. The part must be a part managed by this service.
	 * <p>
	 * If <code>force</code> is <code>true</code> or the part has been tagged with the
	 * {@link #REMOVE_ON_HIDE_TAG} tag, it will be removed from the model when the service hides it.
	 * </p>
	 * 
	 * @param part
	 *            the part to hide
	 * @param force
	 *            if the part should be removed from the model regardless of its
	 *            {@link #REMOVE_ON_HIDE_TAG} tag
	 */
	public void hidePart(MPart part, boolean force);
	/**
	 * Returns a collection of all the dirty parts that are being managed by this service.
	 * 
	 * 
	 * @return a collection of dirty parts that are being managed by this service, never
	 *         <code>null</code>
	 */
	public Collection<MPart> getDirtyParts();
	/**
	 * Saves the contents of the part if it is dirty and returns whether the operation completed.
	 * 
	 * @param part