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

experimental/PdfViewer/SkPdfEmbeddedFileParameterDictionary_autogen.h

 #ifndef __DEFINED__SkPdfEmbeddedFileParameterDictionary
 #define __DEFINED__SkPdfEmbeddedFileParameterDictionary
 
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Entries in an embedded file parameter dictionary
 class SkPdfEmbeddedFileParameterDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kEmbeddedFileParameterDictionary_SkPdfObjectType;}
   virtual SkPdfObjectType getTypeEnd() const { return (SkPdfObjectType)(kEmbeddedFileParameterDictionary_SkPdfObjectType + 1);}
 public:
   virtual SkPdfEmbeddedFileParameterDictionary* asEmbeddedFileParameterDictionary() {return this;}
   virtual const SkPdfEmbeddedFileParameterDictionary* asEmbeddedFileParameterDictionary() const {return this;}
 
 private:
   virtual SkPdfALinkAnnotationDictionary* asALinkAnnotationDictionary() {return NULL;}
@@ skipping 496 matching lines @@
 
 public:
 private:
 public:
   SkPdfEmbeddedFileParameterDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfDictionary(podofoDoc, podofoObj) {}
 
   virtual bool valid() const {return true;}
 
   SkPdfEmbeddedFileParameterDictionary& operator=(const SkPdfEmbeddedFileParameterDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Optional) The size of the embedded file, in bytes.
+**/
+  bool has_Size() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Size", "", NULL));
+  }
+
   long Size() const {
     long ret;
     if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Size", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return 0;
   }
 
+/** (Optional) The date and time when the embedded file was created.
+**/
+  bool has_CreationDate() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "CreationDate", "", NULL));
+  }
+
   SkPdfDate CreationDate() const {
     SkPdfDate ret;
     if (DateFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "CreationDate", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return SkPdfDate();
   }
 
+/** (Optional) The date and time when the embedded file was last modified.
+**/
+  bool has_ModDate() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ModDate", "", NULL));
+  }
+
   SkPdfDate ModDate() const {
     SkPdfDate ret;
     if (DateFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ModDate", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return SkPdfDate();
   }
 
+/** (Optional) A subdictionary containing additional information specific to
+ *  Mac OS files (see Table 3.35).
+**/
+  bool has_Mac() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Mac", "", NULL));
+  }
+
   SkPdfDictionary* Mac() const {
     SkPdfDictionary* ret;
     if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Mac", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return NULL;
   }
 
+/** (Optional) A 16-byte string that is the checksum of the bytes of the uncom-
+ *  pressed embedded file. The checksum is calculated by applying the standard
+ *  MD5 message-digest algorithm (described in Internet RFC 1321, The MD5
+ *  Message-Digest Algorithm; see the Bibliography) to the bytes of the embedded
+ *  file stream.
+**/
+  bool has_CheckSum() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "CheckSum", "", NULL));
+  }
+
   std::string CheckSum() const {
     std::string ret;
     if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "CheckSum", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
 };
 
 #endif  // __DEFINED__SkPdfEmbeddedFileParameterDictionary