pdfviewer: fix typo (false != NULL)

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 386 matching lines @@
 
         return fMap->set(key, value);
     }
 
     SkPdfObject* get(SkPdfObject* key) {
         SkASSERT(fObjectType == kDictionary_PdfObjectType);
         SkASSERT(key->fObjectType == kName_PdfObjectType);
 
         if (key->fObjectType != kName_PdfObjectType || fObjectType != kDictionary_PdfObjectType) {
             // TODO(edisonn): report err
-            return false;
+            return NULL;
         }
 
         SkASSERT(key->fStr.fBuffer[key->fStr.fBytes] == '\0');
 
         return get((char*)key->fStr.fBuffer);
     }
 
     SkPdfObject* get(const char* key) {
         SkASSERT(fObjectType == kDictionary_PdfObjectType);
         SkASSERT(key);
         if (fObjectType != kDictionary_PdfObjectType) {
             // TODO(edisonn): report err
             return NULL;
         }
         SkPdfObject* ret = NULL;
         fMap->find(key, &ret);
         return ret;
     }
 
     const SkPdfObject* get(SkPdfObject* key) const {
         SkASSERT(fObjectType == kDictionary_PdfObjectType);
         SkASSERT(key->fObjectType == kName_PdfObjectType);
 
         if (key->fObjectType != kName_PdfObjectType || fObjectType != kDictionary_PdfObjectType) {
             // TODO(edisonn): report err
-            return false;
+            return NULL;
         }
 
         SkASSERT(key->fStr.fBuffer[key->fStr.fBytes] == '\0');
 
         return get((char*)key->fStr.fBuffer);
     }
 
 
     const SkPdfObject* get(const char* key) const {
         SkASSERT(fObjectType == kDictionary_PdfObjectType);
@@ skipping 413 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_