searchIndex.setFileTreeModel(fileTreeModel);
participantModel = ParticipantModel.create(
appContext.getFrontendApi(), appContext.getMessageFilter());
IncomingDocOpDemultiplexer docOpRecipient = IncomingDocOpDemultiplexer.create(
appContext.getMessageFilter());
collaborationManager = CollaborationManager.create(
appContext, documentManager, participantModel, docOpRecipient);
DocOpsSavedNotifier docOpSavedNotifier =