refactoring for pdf viewer lib

experimental/PdfViewer/autogen/SkPdfPSXobjectDictionary_autogen.h

 #ifndef __DEFINED__SkPdfPSXobjectDictionary
 #define __DEFINED__SkPdfPSXobjectDictionary
 
 #include "SkPdfUtils.h"
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
 // Additional entries specific to a PostScript XObject dictionary
 class SkPdfPSXobjectDictionary : public SkPdfDictionary {
@@ skipping 514 matching lines @@
 
   SkPdfPSXobjectDictionary& operator=(const SkPdfPSXobjectDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
 /** (Optional) The type of PDF object that this dictionary describes; if present, must be
  *  XObject for a PostScript XObject.
 **/
   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;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
+  std::string Type() const;
 /** (Required) The type of XObject that this dictionary describes; must be PS for a
  *  PostScript XObject.
 **/
   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;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return "";
-  }
-
+  std::string Subtype() const;
 /** (Optional) A stream whose contents are to be used in place of the PostScript
  *  XObject's stream when the target PostScript interpreter is known to support only
  *  LanguageLevel 1.
 **/
   bool has_Level1() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Level1", "", NULL));
   }
 
-  SkPdfStream* Level1() const {
-    SkPdfStream* ret;
-    if (StreamFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Level1", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return NULL;
-  }
-
+  SkPdfStream* Level1() const;
 };
 
 #endif  // __DEFINED__SkPdfPSXobjectDictionary