Add missing import for std::unordered_map (#34)
Add missing import for std::unordered_map (#34)

std::unordered_map is used by this file, but never imported.
It is being imported transitively.
Declare the import to prevent this.
cloudendpoints/service-control-client-cxx,cloudendpoints/service-control-client-cxx,cloudendpoints/service-control-client-cxx