Disable PSON for the WPE port

Author: magomez

Source/WebKit/UIProcess/API/glib/WebKitWebContext.cpp

@@ -440,8 +440,12 @@ static void webkitWebContextConstructed(GObject* object)
 #if USE(CAIRO)
     configuration.setUseSystemAppearanceForScrollbars(priv->useSystemAppearanceForScrollbars);
 #endif
+#else
+#if PLATFORM(WPE)
+    configuration.setProcessSwapsOnNavigation(false);
 #else
     configuration.setProcessSwapsOnNavigation(true);
+#endif
 #endif
     if (priv->memoryPressureSettings) {
         configuration.setMemoryPressureHandlerConfiguration(webkitMemoryPressureSettingsGetMemoryPressureHandlerConfiguration(priv->memoryPressureSettings));