No real changes, just refactor wxControlContainer code a little.

Extract the call to wxWindow::SetCanFocus() into a separate
UpdateParentCanFocus() function as it can be necessary to do it from places
other than UpdateCanFocusChildren() too.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74582 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/containr.h

@@ -97,6 +97,9 @@ protected:
     wxWindow *m_winLastFocused;
 
 private:
+    // Update the window status to reflect whether it is getting focus or not.
+    void UpdateParentCanFocus();
+
     // Indicates whether the associated window can ever have focus itself.
     //
     // Usually this is the case, e.g. a wxPanel can be used either as a