refactor folders to make prepare for native pdf parser

experimental/PdfViewer/pdfparser/podofo/autogen/SkPdfShadingDictionary_autogen.cpp

 #include "SkPdfShadingDictionary_autogen.h"
 
 long SkPdfShadingDictionary::ShadingType() const {
   long ret;
   if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ShadingType", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return 0;
 }
 
 std::string SkPdfShadingDictionary::getColorSpaceAsName() const {
@@ skipping 23 matching lines @@
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return NULL;
 }
 
 bool SkPdfShadingDictionary::AntiAlias() const {
   bool ret;
   if (BoolFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "AntiAlias", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return false;
 }