Merge "Change the default snoop log level to off."

  std::string default_mode = BTSNOOP_MODE_DISABLED;

  if (is_debuggable) {

    int len = osi_property_get(BTSNOOP_DEFAULT_MODE_PROPERTY, property.data(),

                               BTSNOOP_MODE_FILTERED);

                               BTSNOOP_MODE_DISABLED);

    default_mode = std::string(property.data(), len);

  }