refactor folders to make prepare for native pdf parser

experimental/PdfViewer/autogen/SkPdfType3ShadingDictionary_autogen.cpp

-#include "SkPdfType3ShadingDictionary_autogen.h"
-
-SkPdfArray* SkPdfType3ShadingDictionary::Coords() const {
-  SkPdfArray* ret;
-  if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Coords", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}
-
-SkPdfArray* SkPdfType3ShadingDictionary::Domain() const {
-  SkPdfArray* ret;
-  if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Domain", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}
-
-SkPdfFunction SkPdfType3ShadingDictionary::Function() const {
-  SkPdfFunction ret;
-  if (FunctionFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Function", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return SkPdfFunction();
-}
-
-SkPdfArray* SkPdfType3ShadingDictionary::Extend() const {
-  SkPdfArray* ret;
-  if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Extend", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}