/usr/lib/x86_64-linux-gnu/qt4/imports/Qt/labs/gestures/qmldir is in libqt4-declarative-gestures 4:4.8.7+dfsg-5ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | plugin qmlgesturesplugin
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