Some functions like
std::binary_function and std::unary_function were deprecated in C++11 and are slated to be removed in C++17.
Also, they currently only provide two typedefs that are typically unused. If they are needed, the recommendation is to add the typedefs manually.
All in all, this bug tracks cleaning up unnecessary code.
Comment 1 by bugdroid1@chromium.org
, Mar 9 2016