Update Pepper interface for EME

mojo/examples/pepper_container_app/plugin_instance.cc

Index: mojo/examples/pepper_container_app/plugin_instance.cc
diff --git a/mojo/examples/pepper_container_app/plugin_instance.cc b/mojo/examples/pepper_container_app/plugin_instance.cc
index c0d2e312d649663afd1de7039eeaffd46d3b93d9..8817528ef79d28fe6243d76863de532f5760d913 100644
--- a/mojo/examples/pepper_container_app/plugin_instance.cc
+++ b/mojo/examples/pepper_container_app/plugin_instance.cc
@@ -310,6 +310,12 @@ void PluginInstance::PromiseResolvedWithSession(PP_Instance instance,
   NOTIMPLEMENTED();
 }
 
+void PluginInstance::PromiseResolvedWithKeyIds(PP_Instance instance,
+                                               uint32 promise_id,
+                                               PP_Var key_ids_var) {
+  NOTIMPLEMENTED();
+}
+
 void PluginInstance::PromiseRejected(PP_Instance instance,
                                      uint32 promise_id,
                                      PP_CdmExceptionCode exception_code,
@@ -325,6 +331,18 @@ void PluginInstance::SessionMessage(PP_Instance instance,
   NOTIMPLEMENTED();
 }
 
+void PluginInstance::SessionKeysChange(PP_Instance instance,
+                                       PP_Var web_session_id_var,
+                                       PP_Bool has_additional_usable_key) {
+  NOTIMPLEMENTED();
+}
+
+void PluginInstance::SessionExpirationChange(PP_Instance instance,
+                                             PP_Var web_session_id_var,
+                                             PP_Time new_expiry_time) {
+  NOTIMPLEMENTED();
+}
+
 void PluginInstance::SessionReady(PP_Instance instance,
                                   PP_Var web_session_id_var) {
   NOTIMPLEMENTED();