loplugin:unocast (cairocanvas::SurfaceProvider)

(See the upcoming commit introducing that loplugin:unocast on why such
dynamic_casts from UNO types are dangerous.)

There are implementation classes whose getSomething already delegates to
RepaintTarget, so they can't also delegate to SurfaceProvider.  So introduce the
concept of comphelper::getSomethingImpl additionally delegating to a sequence of
mixin classes before delegating to the base.

Change-Id: I9230f3dc06abbdd1ad92514a11473dae2624f7c1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/144404
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

0 files changed, 0 insertions, 0 deletions