refactoring for pdf viewer lib

experimental/PdfViewer/autogen/SkPdfDctdecodeFilterDictionary_autogen.h

 #ifndef __DEFINED__SkPdfDctdecodeFilterDictionary
 #define __DEFINED__SkPdfDctdecodeFilterDictionary
 
 #include "SkPdfUtils.h"
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
 // Optional parameter for the DCTDecode filter
 class SkPdfDctdecodeFilterDictionary : public SkPdfDictionary {
@@ skipping 530 matching lines @@
  *  ColorTransform to 0. Additionally, the encoding algorithm inserts an Adobe-
  *  defined marker code in the encoded data indicating the ColorTransform value
  *  used. If present, this marker code overrides the ColorTransform value given to
  *  DCTDecode. Thus it is necessary to specify ColorTransform only when decod-
  *  ing data that does not contain the Adobe-defined marker code.
 **/
   bool has_ColorTransform() const {
     return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ColorTransform", "", NULL));
   }
 
-  long ColorTransform() const {
-    long ret;
-    if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "ColorTransform", "", &ret)) return ret;
-    // TODO(edisonn): warn about missing required field, assert for known good pdfs
-    return 0;
-  }
-
+  long ColorTransform() const;
 };
 
 #endif  // __DEFINED__SkPdfDctdecodeFilterDictionary