modules/video_capture/device_info_impl.cc
int32_t DeviceInfoImpl::GetOrientation(const char* deviceUniqueIdUTF8,
                                       VideoRotation& orientation) {
  orientation = kVideoRotation_0;
    return -1;
}
//Default implementation. This should be overridden by Mobile implementations.
Default implementation. This should be overridden by Mobile implementations.
Default implementation . This should be overridden by Mobile implementations .
int32_t DeviceInfoImpl::GetOrientation(const char* deviceUniqueIdUTF8,
                                       VideoRotation& orientation) {
  orientation = kVideoRotation_0;
    return -1;
}
int32_t DeviceInfoImpl :: GetOrientation ( const char * deviceUniqueIdUTF8 , VideoRotation & orientation ) { orientation = kVideoRotation_0 ; return -1 ; }
Default implementation.
Default implementation .