/usr/lib/x86_64-linux-gnu/libwebkitgtk-3.0.so is in libwebkitgtk-3.0-dev 2.4.11-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libwebkitgtk-3.0.so.0.22.17
/usr/lib/x86_64-linux-gnu/libwebkitgtk-3.0.so.0.22.17