refactoring for pdf viewer lib

experimental/PdfViewer/autogen/SkPdfSoundAnnotationDictionary_autogen.cpp

+#include "SkPdfSoundAnnotationDictionary_autogen.h"
+
+std::string SkPdfSoundAnnotationDictionary::Subtype() const {
+  std::string ret;
+  if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Subtype", "", &ret)) return ret;
+  // TODO(edisonn): warn about missing required field, assert for known good pdfs
+  return "";
+}
+
+SkPdfStream* SkPdfSoundAnnotationDictionary::Sound() const {
+  SkPdfStream* ret;
+  if (StreamFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Sound", "", &ret)) return ret;
+  // TODO(edisonn): warn about missing required field, assert for known good pdfs
+  return NULL;
+}
+
+std::string SkPdfSoundAnnotationDictionary::Contents() const {
+  std::string ret;
+  if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Contents", "", &ret)) return ret;
+  // TODO(edisonn): warn about missing required field, assert for known good pdfs
+  return "";
+}
+
+std::string SkPdfSoundAnnotationDictionary::Name() const {
+  std::string ret;
+  if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Name", "", &ret)) return ret;
+  // TODO(edisonn): warn about missing required field, assert for known good pdfs
+  return "";
+}
+