refactor folders to make prepare for native pdf parser

experimental/PdfViewer/autogen/SkPdfType4ShadingDictionary_autogen.cpp

-#include "SkPdfType4ShadingDictionary_autogen.h"
-
-long SkPdfType4ShadingDictionary::BitsPerCoordinate() const {
-  long ret;
-  if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "BitsPerCoordinate", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return 0;
-}
-
-long SkPdfType4ShadingDictionary::BitsPerComponent() const {
-  long ret;
-  if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "BitsPerComponent", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return 0;
-}
-
-long SkPdfType4ShadingDictionary::BitsPerFlag() const {
-  long ret;
-  if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "BitsPerFlag", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return 0;
-}
-
-SkRect* SkPdfType4ShadingDictionary::Decode() const {
-  SkRect* ret;
-  if (SkRectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Decode", "", &ret)) return ret;
-  // TODO(edisonn): warn about missing required field, assert for known good pdfs
-  return NULL;
-}
-
-SkPdfFunction SkPdfType4ShadingDictionary::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();
-}