A FontMetric can be created from a PhysicalFontFace, so setup a constructor that takes a PhysicalFontFace object to instantiate the FontMetric. The OutputDevice functions GetDevFont() and GetDevFontCount() don't necessarily make much sense, so have changed GetDevFont() to GetFontMetricFromCollection() and GetDevFontCount() to GetFontFaceCollectionCount(). Change-Id: I1577679b949a49a7cf1248838786d0f5e84a5245 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/121796 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>