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

experimental/PdfViewer/SkPdfMetadataStreamDictionary_autogen.h

Index: experimental/PdfViewer/SkPdfMetadataStreamDictionary_autogen.h
===================================================================
--- experimental/PdfViewer/SkPdfMetadataStreamDictionary_autogen.h	(revision 9684)
+++ experimental/PdfViewer/SkPdfMetadataStreamDictionary_autogen.h	(working copy)
@@ -5,6 +5,7 @@
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Additional entries in a metadata stream dictionary
 class SkPdfMetadataStreamDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kMetadataStreamDictionary_SkPdfObjectType;}
@@ -521,6 +522,13 @@
 
   SkPdfMetadataStreamDictionary& operator=(const SkPdfMetadataStreamDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Required) The type of PDF object that this dictionary describes; must be Metadata
+ *  for a metadata stream.
+**/
+  bool has_Type() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Type", "", NULL));
+  }
+
   std::string Type() const {
     std::string ret;
     if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Type", "", &ret)) return ret;
@@ -528,6 +536,13 @@
     return "";
   }
 
+/** (Required) The type of metadata stream that this dictionary describes; must be
+ *  XML.
+**/
+  bool has_Subtype() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Subtype", "", NULL));
+  }
+
   std::string Subtype() const {
     std::string ret;
     if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Subtype", "", &ret)) return ret;