The PageClient for SVGDecodedImageData needs to actually have the definition of PageClient available in order to inherit from it. This fixes importing this header from Objective-C or Swift.
@@ -8,6 +8,7 @@
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/DecodedImageData.h>
+#include <LibWeb/Page/Page.h>
namespace Web::SVG {