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

experimental/PdfViewer/SkPdfHideActionDictionary_autogen.h

Index: experimental/PdfViewer/SkPdfHideActionDictionary_autogen.h
===================================================================
--- experimental/PdfViewer/SkPdfHideActionDictionary_autogen.h	(revision 9684)
+++ experimental/PdfViewer/SkPdfHideActionDictionary_autogen.h	(working copy)
@@ -5,6 +5,7 @@
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Additional entries specific to a hide action
 class SkPdfHideActionDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kHideActionDictionary_SkPdfObjectType;}
@@ -521,6 +522,13 @@
 
   SkPdfHideActionDictionary& operator=(const SkPdfHideActionDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Required) The type of action that this dictionary describes; must be Hide for a hide
+ *  action.
+**/
+  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;
@@ -528,6 +536,18 @@
     return "";
   }
 
+/** (Required) The annotation or annotations to be hidden or shown, specified in any
+ *  of the following forms:
+ *  *  An indirect reference to an annotation dictionary
+ *  *  A string giving the fully qualified field name of an interactive form field whose
+ *     associated widget annotation or annotations are to be affected (see "Field
+ *     Names" on page 532)
+ *  *  An array of such dictionaries or strings
+**/
+  bool has_T() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "T", "", NULL));
+  }
+
   bool isTADictionary() const {
     SkPdfObject* ret = NULL;
     if (!ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "T", "", &ret)) return false;
@@ -567,6 +587,13 @@
     return SkPdfArray();
   }
 
+/** (Optional) A flag indicating whether to hide the annotation (true) or show it (false).
+ *  Default value: true.
+**/
+  bool has_H() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "H", "", NULL));
+  }
+
   bool H() const {
     bool ret;
     if (BoolFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "H", "", &ret)) return ret;