Deal with ca and CA transparency operators in pdf. add comments to generated classes.

experimental/PdfViewer/SkPdfFDFCatalogDictionary_autogen.h

 #ifndef __DEFINED__SkPdfFDFCatalogDictionary
 #define __DEFINED__SkPdfFDFCatalogDictionary
 
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Entries in the FDF catalog dictionary
 class SkPdfFDFCatalogDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kFDFCatalogDictionary_SkPdfObjectType;}
   virtual SkPdfObjectType getTypeEnd() const { return (SkPdfObjectType)(kFDFCatalogDictionary_SkPdfObjectType + 1);}
 public:
   virtual SkPdfFDFCatalogDictionary* asFDFCatalogDictionary() {return this;}
   virtual const SkPdfFDFCatalogDictionary* asFDFCatalogDictionary() const {return this;}
 
 private:
   virtual SkPdfALinkAnnotationDictionary* asALinkAnnotationDictionary() {return NULL;}
@@ skipping 496 matching lines @@
 
 public:
 private:
 public:
   SkPdfFDFCatalogDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfDictionary(podofoDoc, podofoObj) {}
 
   virtual bool valid() const {return true;}
 
   SkPdfFDFCatalogDictionary& operator=(const SkPdfFDFCatalogDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Optional; PDF 1.4) The version of the PDF specification to which
+ *  this FDF file conforms (for example, 1.4), if later than the version
+ *  specified in the file's header (see "FDF Header" on page 559). If the
+ *  header specifies a later version, or if this entry is absent, the docu-
+ *  ment conforms to the version specified in the header.
+ *  Note: The value of this entry is a name object, not a number, and so
+ *  must be preceded by a slash character (/) when written in the FDF file
+ *  (for example, /1.4).
+**/
+  bool has_Version() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Version", "", NULL));
+  }
+
   std::string Version() const {
     std::string ret;
     if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Version", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
+/** (Required) The FDF dictionary for this file (see Table 8.69).
+**/
+  bool has_FDF() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "FDF", "", NULL));
+  }
+
   SkPdfDictionary* FDF() const {
     SkPdfDictionary* ret;
     if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "FDF", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return NULL;
   }
 
 };
 
 #endif  // __DEFINED__SkPdfFDFCatalogDictionary