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 force
	 *            <code>true</code> if a new part should be created, <code>false</code> if the
	 *            window should be queried for a shared part first
	 * @return a new part of the given id, or <code>null</code> if no part descriptors can be found
	 *         that match the specified id
	 */
	public MPlaceholder createSharedPart(String id, MWindow sharedWindow, boolean force);
	/**
	 * Shows a part with the identified by the given id. In the event that there are multiple parts
	 * with the specified id, the client is recommended to use {@link #getParts()} and iterate over
	 * the collection to find the interested part and invoke {@link #showPart(MPart, PartState)} on
	 * it.
	 * <p>
	 * The behavior of this method is dictated by the supplied state. If <code>ACTIVATE</code> is
	 * supplied, then the part is made visible and granted focus. If <code>VISIBLE</code> is
	 * supplied, then the part will be made visible but not given focus. If <code>CREATE</code> is
	 * supplied, then the part will be instantiated though its contents may not necessarily be
	 * visible to the end user.
	 * </p>
	 * 
	 * @param id
	 *            the identifier of the part, must not be <code>null</code>
	 * @param partState
	 *            the desired state of the shown part to be in
	 * @return the shown part, or <code>null</code> if no parts or part descriptors can be found
	 *         that match the specified id
	 */
	public MPart showPart(String id, PartState partState);
	/**
	 * Shows the given part.