SkPdfStream* SkPdfType2PatternDictionary::getShadingAsStream(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("Shading", "");
  if (doc) {ret = doc->resolveReference(ret);}
  if ((ret != NULL && ret->hasStream()) || (doc == NULL && ret != NULL && ret->isReference())) return ret->getStream();
  // TODO(edisonn): warn about missing required field, assert for known good pdfs
  return NULL;
}
bool SkPdfCMapDictionary::isUseCMapAStream(SkPdfNativeDoc* doc) {
    SkPdfNativeObject* ret = get("UseCMap", "");
    if (doc) {
        ret = doc->resolveReference(ret);
    }
    return ret != NULL && ret->hasStream();
}
SkPdfStream* SkPdfAppearanceDictionary::getDAsStream(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("D", "");
  if (doc) {ret = doc->resolveReference(ret);}
  if ((ret != NULL && ret->hasStream()) || (doc == NULL && ret != NULL && ret->isReference())) return ret->getStream();
  // TODO(edisonn): warn about missing default value for optional fields
  return NULL;
}
SkPdfStream* SkPdfPDF_XOutputIntentDictionary::DestOutputProfile(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("DestOutputProfile", "");
  if (doc) {ret = doc->resolveReference(ret);}
  if ((ret != NULL && ret->hasStream()) || (doc == NULL && ret != NULL && ret->isReference())) return ret->getStream();
  // TODO(edisonn): warn about missing default value for optional fields
  return NULL;
}
SkPdfStream* SkPdfMacOsFileInformationDictionary::ResFork(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("ResFork", "");
  if (doc) {ret = doc->resolveReference(ret);}
  if ((ret != NULL && ret->hasStream()) || (doc == NULL && ret != NULL && ret->isReference())) return ret->getStream();
  // TODO(edisonn): warn about missing default value for optional fields
  return NULL;
}
SkPdfStream* SkPdfJbig2DecodeFilterDictionary::JBIG2Globals(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("JBIG2Globals", "");
  if (doc) {ret = doc->resolveReference(ret);}
  if ((ret != NULL && ret->hasStream()) || (doc == NULL && ret != NULL && ret->isReference())) return ret->getStream();
  // TODO(edisonn): warn about missing default value for optional fields
  return NULL;
}
bool SkPdfType2PatternDictionary::isShadingAStream(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("Shading", "");
  if (doc) {ret = doc->resolveReference(ret);}
  return ret != NULL && ret->hasStream();
}
bool SkPdfAppearanceDictionary::isDAStream(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("D", "");
  if (doc) {ret = doc->resolveReference(ret);}
  return ret != NULL && ret->hasStream();
}
bool SkPdfImageDictionary::isMaskAStream(SkPdfNativeDoc* doc) {
  SkPdfNativeObject* ret = get("Mask", "");
  if (doc) {ret = doc->resolveReference(ret);}
  return ret != NULL && ret->hasStream();
}