Why do some people say that West Coast Hotel essentially ended the Lochner era? What approaches to the concept of liberty are put forward in the various opinions in Palko and Adamson?

SOURCES:

West Coast Hotel: https://www.oyez.org/cases/1900-1940/300us379

Palko: https://www.oyez.org/cases/1900-1940/302us319

Adamson: https://www.oyez.org/cases/1940-1955/332us46

Lochner: https://www.oyez.org/cases/1900-1940/198us45