pdfviewer: check in pdfapi classes

experimental/PdfViewer/pdfparser/native/pdfapi/SkPdfURLAliasDictionary_autogen.cpp

+#include "SkPdfURLAliasDictionary_autogen.h"
+
+
+#include "SkPdfNativeDoc.h"
+SkString SkPdfURLAliasDictionary::U(SkPdfNativeDoc* doc) {
+  SkPdfNativeObject* ret = get("U", "");
+  if (doc) {ret = doc->resolveReference(ret);}
+  if ((ret != NULL && ret->isAnyString()) || (doc == NULL && ret != NULL && ret->isReference())) return ret->stringValue2();
+  // TODO(edisonn): warn about missing required field, assert for known good pdfs
+  return SkString();
+}
+
+bool SkPdfURLAliasDictionary::has_U() const {
+  return get("U", "") != NULL;
+}
+
+SkPdfArray* SkPdfURLAliasDictionary::C(SkPdfNativeDoc* doc) {
+  SkPdfNativeObject* ret = get("C", "");
+  if (doc) {ret = doc->resolveReference(ret);}
+  if ((ret != NULL && ret->isArray()) || (doc == NULL && ret != NULL && ret->isReference())) return (SkPdfArray*)ret;
+  // TODO(edisonn): warn about missing default value for optional fields
+  return NULL;
+}
+
+bool SkPdfURLAliasDictionary::has_C() const {
+  return get("C", "") != NULL;
+}
+