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

experimental/PdfViewer/SkPdfWebCapturePageSetDictionary_autogen.h

 #ifndef __DEFINED__SkPdfWebCapturePageSetDictionary
 #define __DEFINED__SkPdfWebCapturePageSetDictionary
 
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Additional entries specific to a Web Capture page set
 class SkPdfWebCapturePageSetDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kWebCapturePageSetDictionary_SkPdfObjectType;}
   virtual SkPdfObjectType getTypeEnd() const { return (SkPdfObjectType)(kWebCapturePageSetDictionary_SkPdfObjectType + 1);}
 public:
   virtual SkPdfWebCapturePageSetDictionary* asWebCapturePageSetDictionary() {return this;}
   virtual const SkPdfWebCapturePageSetDictionary* asWebCapturePageSetDictionary() const {return this;}
 
 private:
   virtual SkPdfALinkAnnotationDictionary* asALinkAnnotationDictionary() {return NULL;}
@@ skipping 496 matching lines @@
 
 public:
 private:
 public:
   SkPdfWebCapturePageSetDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfDictionary(podofoDoc, podofoObj) {}
 
   virtual bool valid() const {return true;}
 
   SkPdfWebCapturePageSetDictionary& operator=(const SkPdfWebCapturePageSetDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Required) The subtype of content set that this dictionary describes; must be SPS
+ *  ("Spider page set") for a page set.
+**/
+  bool has_S() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "S", "", NULL));
+  }
+
   std::string S() const {
     std::string ret;
     if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "S", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
+/** (Optional) The title of the page set, a text string representing it in human-readable
+ *  form.
+**/
+  bool has_T() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "T", "", NULL));
+  }
+
   std::string T() const {
     std::string ret;
     if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "T", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
+/** (Optional) A text identifier generated from the text of the page set, as described in
+ *  "Digital Identifiers" on page 664.
+**/
+  bool has_TID() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "TID", "", NULL));
+  }
+
   std::string TID() const {
     std::string ret;
     if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "TID", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
 };
 
 #endif  // __DEFINED__SkPdfWebCapturePageSetDictionary