Bug 53386 [ActivityMgmt] Remove show All from everywhere except new wizards
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
messageArea.setMessageLayoutData(createMessageAreaData());
		return titleArea;
	}
	/**
	 * Create the layout data for the message area.
	 * @return FormData for the message area.
	 */
	private FormData createMessageAreaData() {
		FormData messageData = new FormData();
		messageData.top = new FormAttachment(0);
	    messageData.bottom = new FormAttachment(titleImage,0,SWT.BOTTOM);
		messageData.right = new FormAttachment(titleImage,0);
		messageData.left = new FormAttachment(0);
		return messageData;
	}
	/**
	 * @param parent the SWT parent for the tree area controls.
	 * @return the new <code>Control</code>.
	 * @since 3.0
	 */
	protected Control createTreeAreaContents(Composite parent) {
		
		treeViewer = createTreeViewer(parent);
		treeViewer.setLabelProvider(new PreferenceLabelProvider());
		treeViewer.setContentProvider(new PreferenceContentProvider());
		treeViewer.setInput(preferenceManager);
		layoutTreeAreaControl(treeViewer.getControl());
		return treeViewer.getControl();
	}
	/**