SkPDF SkPDFObject::addResources signature simplified

src/pdf/SkPDFCatalog.cpp

Index: src/pdf/SkPDFCatalog.cpp
diff --git a/src/pdf/SkPDFCatalog.cpp b/src/pdf/SkPDFCatalog.cpp
index ab5d510861ba7b14afeb4e710d0aafe478344712..4069cc9762e345b8460ced9f1b3f605b9ae99de7 100644
--- a/src/pdf/SkPDFCatalog.cpp
+++ b/src/pdf/SkPDFCatalog.cpp
@@ -21,6 +21,7 @@ bool SkPDFCatalog::addObject(SkPDFObject* obj) {
         return false;
     }
     fObjectNumbers.set(obj, fObjectNumbers.count() + 1);
+    fObjects.push(obj);
     return true;
 }