Code review comment for lp://staging/~nick-dedekind/qtmir/persistent_surface_id

/home/dandrader/qtmir/persistent_surface_id/src/platforms/mirserver/screen.cpp:218:59: error: 'const Width {aka const class mir::geometry::detail::IntWrapper<mir::geometry::WidthTag>}' has no member named 'as_float'
/home/dandrader/qtmir/persistent_surface_id/src/platforms/mirserver/screen.cpp:219:61: error: 'const Height {aka const class mir::geometry::detail::IntWrapper<mir::geometry::HeightTag>}' has no member named 'as_float'

/home/dandrader/qtmir/persistent_surface_id/tests/framework/qtmir_test.cpp:168:92: required from here
/usr/include/c++/5/ext/new_allocator.h:120:4: error: invalid new-expression of abstract class type 'mir::scene::MockSession'

Getting some build failures. Maybe it needs to have some "mir-0.23 compatibility branch" as prereq...