refactoring for pdf viewer lib

experimental/PdfViewer/autogen/SkPdfAttributeObjectDictionary_autogen.h

 #ifndef __DEFINED__SkPdfAttributeObjectDictionary
 #define __DEFINED__SkPdfAttributeObjectDictionary
 
 #include "SkPdfUtils.h"
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
 // Entry common to all attribute objects
 class SkPdfAttributeObjectDictionary : public SkPdfDictionary {
@@ skipping 514 matching lines @@
 
   SkPdfAttributeObjectDictionary& operator=(const SkPdfAttributeObjectDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
 /** (Required) The name of the application or plug-in extension owning the attribute data.
  *  The name must conform to the guidelines described in Appendix E.
 **/
   bool has_O() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "O", "", NULL));
   }
 
-  std::string O() const {
-    std::string ret;
-    if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "O", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
+  std::string O() const;
 };
 
 #endif  // __DEFINED__SkPdfAttributeObjectDictionary