Lapatinib Completed Phase 2 Trials for Recurrent Gallbladder Cancer / Advanced Adult Primary Liver Cancer / Adult Primary Hepatocellular Carcinoma / Unresectable Gallbladder Cancer / Unresectable Extrahepatic Bile Duct Cancer / Localized Unresectable Adult Primary Liver Cancer / Recurrent Adult Primary Liver Cancer / Recurrent Extrahepatic Bile Duct Cancer Treatment