invalidateUIArea(oUIArea) {
			mUIAreas[oUIArea.getId()] = oUIArea;
			if ( !_sRerenderTimer ) {
				// TODO: we should handle xx-waitForTheme here...
				oRenderLog.debug("Registering timer for delayed re-rendering");
				Rendering.renderPendingUIUpdates('invalidated UIArea', 0); // decoupled for collecting several invalidations into one redraw
			}
		}
Registers an invalidated UIArea for rerendering.

@param {sap.ui.core.UIArea} oUIArea The invalidated UIArea
@private