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

experimental/PdfViewer/SkPdfPagePieceDictionary_autogen.h

 #ifndef __DEFINED__SkPdfPagePieceDictionary
 #define __DEFINED__SkPdfPagePieceDictionary
 
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Entries in a page-piece dictionary
 class SkPdfPagePieceDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kPagePieceDictionary_SkPdfObjectType;}
   virtual SkPdfObjectType getTypeEnd() const { return (SkPdfObjectType)(kPagePieceDictionary_SkPdfObjectType + 1);}
 public:
   virtual SkPdfPagePieceDictionary* asPagePieceDictionary() {return this;}
   virtual const SkPdfPagePieceDictionary* asPagePieceDictionary() const {return this;}
 
 private:
   virtual SkPdfALinkAnnotationDictionary* asALinkAnnotationDictionary() {return NULL;}
@@ skipping 496 matching lines @@
 
 public:
 private:
 public:
   SkPdfPagePieceDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfDictionary(podofoDoc, podofoObj) {}
 
   virtual bool valid() const {return true;}
 
   SkPdfPagePieceDictionary& operator=(const SkPdfPagePieceDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** ()An application data dictionary (see Table 9.7).
+**/
 /*
   bool has_[any_application_name_or_well_known_data_type]() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "[any_application_name_or_well_known_data_type]", "", NULL));
   }
+
   SkPdfDictionary* [any_application_name_or_well_known_data_type]() const {
     SkPdfDictionary* ret;
     if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "[any_application_name_or_well_known_data_type]", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return NULL;
   }
 
 */
 };
 
 #endif  // __DEFINED__SkPdfPagePieceDictionary