GET_CHANNEL_RECEIVERS_ID  159 chrome/browser/extensions/api/messaging/message_service.cc   DCHECK_EQ(GET_CHANNEL_RECEIVERS_ID(channel_id), port2_id);
GET_CHANNEL_RECEIVERS_ID  609 chrome/browser/extensions/api/messaging/message_service.cc       CloseChannelImpl(current, GET_CHANNEL_RECEIVERS_ID(current->first),