Add stack/gatt/gatt_main::GattClientEventText am: 60881cf9 am: 98e69dfd

#include "gatt_api.h"

#include <base/callback_forward.h>

#include <string>

#include <vector>

#ifndef BTA_GATT_DEBUG

typedef uint8_t tBTA_GATTC_EVT;

inline std::string GattClientEventText(tBTA_GATTC_EVT event) {

  switch (event) {

    case BTA_GATTC_DEREG_EVT:

      return std::string("deregistered");

    case BTA_GATTC_OPEN_EVT:

      return std::string("opened");

    case BTA_GATTC_CLOSE_EVT:

      return std::string("closed");

    case BTA_GATTC_SEARCH_CMPL_EVT:

      return std::string("discovery completed");

    case BTA_GATTC_SEARCH_RES_EVT:

      return std::string("discovery result");

    case BTA_GATTC_SRVC_DISC_DONE_EVT:

      return std::string("discovery done");

    case BTA_GATTC_NOTIF_EVT:

      return std::string("attribute notification");

    case BTA_GATTC_EXEC_EVT:

      return std::string("execute write completed");

    case BTA_GATTC_ACL_EVT:

      return std::string("ACL up event");

    case BTA_GATTC_CANCEL_OPEN_EVT:

      return std::string("cancel open event");

    case BTA_GATTC_SRVC_CHG_EVT:

      return std::string("service changed");

    case BTA_GATTC_ENC_CMPL_CB_EVT:

      return std::string("encryption complete");

    case BTA_GATTC_CFG_MTU_EVT:

      return std::string("configure MTU complete");

    case BTA_GATTC_CONGEST_EVT:

      return std::string("congestion");

    case BTA_GATTC_PHY_UPDATE_EVT:

      return std::string("PHY change");

    case BTA_GATTC_CONN_UPDATE_EVT:

      return std::string("connection parameters update");

    default:

      return std::string("unknown");

  }

}

typedef struct {

  uint16_t unit;  /* as UUIUD defined by SIG */

  uint16_t descr; /* as UUID as defined by SIG */