Port away from WId-based KWindowEffects API

src/platformtheme/kwaylandintegration.cpp

@@ -103,7 +103,7 @@ void KWaylandIntegration::shellSurfaceCreated(QWindow *w)
     }
     const auto blurBehindProperty = w->property(s_blurBehindPropertyName.constData());
     if (blurBehindProperty.isValid()) {
-        KWindowEffects::enableBlurBehind(w->winId(), blurBehindProperty.toBool());
+        KWindowEffects::enableBlurBehind(w, blurBehindProperty.toBool());
     }
     // create deco
     Surface *s = Surface::fromWindow(w);

src/platformtheme/x11integration.cpp

@@ -88,7 +88,7 @@ bool X11Integration::eventFilter(QObject *watched, QEvent *event)
                     }
                     const auto blurBehindProperty = w->property(s_blurBehindPropertyName.constData());
                     if (blurBehindProperty.isValid()) {
-                        KWindowEffects::enableBlurBehind(w->winId(), blurBehindProperty.toBool());
+                        KWindowEffects::enableBlurBehind(w, blurBehindProperty.toBool());
                     }
                     installDesktopFileName(w);
                 }