pdf viewer: refactor and fix a bug (SkPdfobject should not reset on destruct)

experimental/PdfViewer/pdfparser/native/SkPdfObject.h

 #ifndef EXPERIMENTAL_PDFVIEWER_PDFPARSER_NATIVE_SKPDFOBJECT_H_
 #define EXPERIMENTAL_PDFVIEWER_PDFPARSER_NATIVE_SKPDFOBJECT_H_
 
 #include <stdint.h>
 #include <string.h>
 #include <string>
 #include "SkTDArray.h"
 #include "SkTDict.h"
 #include "SkRect.h"
 #include "SkMatrix.h"
@@ skipping 68 matching lines @@
         // TODO(edisonn): make sure the foorprint of fArray and fMap is small, otherwise, use pointers, or classes with up to 8 bytes in footprint
         SkTDArray<SkPdfObject*>* fArray;
         Reference fRef;
     };
     SkTDict<SkPdfObject*>* fMap;
     void* fData;
 
 
 public:
 
-    SkPdfObject() : fObjectType(kInvalid_PdfObjectType), fData(NULL) {}
+    SkPdfObject() : fObjectType(kInvalid_PdfObjectType), fMap(NULL), fData(NULL) {}
 
     inline void* data() {
         return fData;
     }
 
     inline void setData(void* data) {
         fData = data;
     }
 
-    ~SkPdfObject() {
-        reset();
-    }
+//    ~SkPdfObject() {
+//        //reset();  must be called manually!
+//    }
 
     void reset() {
         switch (fObjectType) {
             case kArray_PdfObjectType:
                 delete fArray;
                 break;
 
             case kDictionary_PdfObjectType:
                 delete fMap;
                 break;
@@ skipping 745 matching lines @@
 
 class SkPdfStream : public SkPdfObject {};
 class SkPdfArray : public SkPdfObject {};
 class SkPdfString : public SkPdfObject {};
 class SkPdfHexString : public SkPdfObject {};
 class SkPdfInteger : public SkPdfObject {};
 class SkPdfReal : public SkPdfObject {};
 class SkPdfNumber : public SkPdfObject {};
 
 #endif  // EXPERIMENTAL_PDFVIEWER_PDFPARSER_NATIVE_SKPDFOBJECT_H_