Bug 261037 bindWidget calls
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/renderers/swt/WBPartFactory.java
Part<?> topTrim = wbwModel.getTrim().getTopTrim();
			if (topTrim != null) {
				bindWidget(topTrim, tl.top);
				topTrim.setOwner(this);
				super.processContents(topTrim);
			}
			Part<?> bottomTrim = wbwModel.getTrim().getBottomTrim();
			if (bottomTrim != null) {
				bindWidget(bottomTrim, tl.bottom);
				bottomTrim.setOwner(this);
				super.processContents(bottomTrim);
			}
			Part<?> leftTrim = wbwModel.getTrim().getLeftTrim();
			if (leftTrim != null) {
				bindWidget(leftTrim, tl.left);
				leftTrim.setOwner(this);
				super.processContents(leftTrim);
			}
			Part<?> rightTrim = wbwModel.getTrim().getRightTrim();
			if (rightTrim != null) {
				bindWidget(rightTrim, tl.right);
				rightTrim.setOwner(this);
				super.processContents(rightTrim);
			}
	
			
			Perspective<?> persp = wbwModel.getChildren().get(0);
			bindWidget(persp, tl.center);