refactoring for pdf viewer lib

experimental/PdfViewer/autogen/SkPdfRadioButtonFieldDictionary_autogen.h

 #ifndef __DEFINED__SkPdfRadioButtonFieldDictionary
 #define __DEFINED__SkPdfRadioButtonFieldDictionary
 
 #include "SkPdfUtils.h"
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
 // Additional entry specific to a radio button field
 class SkPdfRadioButtonFieldDictionary : public SkPdfDictionary {
@@ skipping 517 matching lines @@
 /** (Optional; inheritable; PDF 1.4) An array of text strings to be used in
  *  place of the V entries for the values of the widget annotations repre-
  *  senting the individual radio buttons. Each element in the array repre-
  *  sents the export value of the corresponding widget annotation in the
  *  Kids array of the radio button field.
 **/
   bool has_Opt() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Opt", "", NULL));
   }
 
-  SkPdfArray* Opt() const {
-    SkPdfArray* ret;
-    if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Opt", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return NULL;
-  }
-
+  SkPdfArray* Opt() const;
 };
 
 #endif  // __DEFINED__SkPdfRadioButtonFieldDictionary