Add getter for Device on DisplayWindow

display/lava-extras/display/DisplayWindow.hh

@@ -89,6 +89,7 @@ class DisplayWindow {
     std::vector<SharedImageView> const &chainViews() const {
         return mChainViews;
     }
+    SharedDevice const& device() const { return mDevice; }
 
   protected:
     void buildSwapchain();