refactoring for pdf viewer lib

experimental/PdfViewer/autogen/SkPdfURLAliasDictionary_autogen.h

 #ifndef __DEFINED__SkPdfURLAliasDictionary
 #define __DEFINED__SkPdfURLAliasDictionary
 
 #include "SkPdfUtils.h"
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
 // Entries in a URL alias dictionary
 class SkPdfURLAliasDictionary : public SkPdfDictionary {
@@ skipping 513 matching lines @@
   virtual bool valid() const {return true;}
 
   SkPdfURLAliasDictionary& operator=(const SkPdfURLAliasDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
 /** (Required) The destination URL to which all of the chains specified by the C entry lead.
 **/
   bool has_U() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "U", "", NULL));
   }
 
-  std::string U() const {
-    std::string ret;
-    if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "U", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
+  std::string U() const;
 /** (Optional) An array of one or more arrays of strings, each representing a chain of URLs
  *  leading to the common destination specified by U.
 **/
   bool has_C() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "C", "", NULL));
   }
 
-  SkPdfArray* C() const {
-    SkPdfArray* ret;
-    if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "C", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return NULL;
-  }
-
+  SkPdfArray* C() const;
 };
 
 #endif  // __DEFINED__SkPdfURLAliasDictionary