diff --git a/extensions/universalchardet/tests/Makefile.in b/extensions/universalchardet/tests/Makefile.in
index e235d54e7c0a..cc7301e20fec 100644
--- a/extensions/universalchardet/tests/Makefile.in
+++ b/extensions/universalchardet/tests/Makefile.in
@@ -20,6 +20,7 @@
 # the Initial Developer. All Rights Reserved.
 #
 # Contributor(s):
+#   Proofpoint, Inc.
 #
 # Alternatively, the contents of this file may be used under the terms of
 # either the GNU General Public License Version 2 or later (the "GPL"), or
@@ -46,20 +47,21 @@ MODULE		= universalchardet
 MOZILLA_INTERNAL_API = 1
 
 REQUIRES	= xpcom \
-		  chardet \
 		  $(NULL)
 
 CPPSRCS		= \
 		UniversalChardetTest.cpp \
 		$(NULL)
 
+LOCAL_INCLUDES = -I$(srcdir)/../src/base
+
 SIMPLE_PROGRAMS	= $(CPPSRCS:.cpp=$(BIN_SUFFIX))
 
 include $(topsrcdir)/config/config.mk
 
 LIBS		+= \
 		$(LIBS_DIR) \
-		$(XPCOM_LIBS) \
+		$(DIST)/lib/$(LIB_PREFIX)universalchardet_s.$(LIB_SUFFIX) \
 		$(NSPR_LIBS) \
 		$(NULL)
 
diff --git a/extensions/universalchardet/tests/UniversalChardetTest.cpp b/extensions/universalchardet/tests/UniversalChardetTest.cpp
index fa3d34bba101..c37761753d00 100644
--- a/extensions/universalchardet/tests/UniversalChardetTest.cpp
+++ b/extensions/universalchardet/tests/UniversalChardetTest.cpp
@@ -21,6 +21,7 @@
  *
  * Contributor(s):
  *   Pierre Phaneuf <pp@ludusdesign.com>
+ *   Proofpoint, Inc.
  *
  * Alternatively, the contents of this file may be used under the terms of
  * either the GNU General Public License Version 2 or later (the "GPL"), or
@@ -35,10 +36,6 @@
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
-#include "nsISupports.h"
-#include "nsIComponentManager.h"
-#include "nsICharsetDetector.h"
-#include "nsICharsetDetectionObserver.h"
 #include <stdio.h>
 #include <stdlib.h>
 #if defined(XP_WIN) || defined(XP_OS2)
@@ -47,6 +44,8 @@
 #if defined(XP_UNIX) || defined(XP_BEOS)
 #include <unistd.h>
 #endif
+#include "nscore.h"
+#include "nsUniversalDetector.h"
 
 #define MAXBSIZE (1L << 13)
 
@@ -57,44 +56,21 @@ void usage() {
           ,  MAXBSIZE);
 }
 
-class nsReporter : public nsICharsetDetectionObserver 
+class nsUniversalChardetTest : public nsUniversalDetector
 {
-   NS_DECL_ISUPPORTS
  public:
-   nsReporter() { };
-   virtual ~nsReporter() { };
+   nsUniversalChardetTest() { };
+   virtual ~nsUniversalChardetTest() { };
 
-   NS_IMETHOD Notify(const char* aCharset, nsDetectionConfident aConf)
+  bool done() const { return mDone; }
+
+ private:
+   virtual void Report(const char* aCharset)
     {
         printf("RESULT CHARSET : %s\n", aCharset);
-        printf("RESULT Confident : %d\n", aConf);
-        return NS_OK;
     };
 };
 
-
-NS_IMPL_ISUPPORTS1(nsReporter, nsICharsetDetectionObserver)
-
-nsresult GetDetector(const char* key, nsICharsetDetector** det)
-{
-  char buf[128];
-  strcpy(buf, NS_CHARSET_DETECTOR_CONTRACTID_BASE);
-  strcat(buf, key);
-  return CallCreateInstance(buf, det);
-}
-
-
-nsresult GetObserver(nsICharsetDetectionObserver** aRes)
-{
-  *aRes = nsnull;
-  nsReporter* rep = new nsReporter();
-  if(rep) {
-     return rep->QueryInterface(NS_GET_IID(nsICharsetDetectionObserver) ,
-                                (void**)aRes);
-  }
-  return NS_ERROR_OUT_OF_MEMORY;
-}
-
 int main(int argc, char** argv) {
   char buf[MAXBSIZE];
   PRUint32 bs;
@@ -112,26 +88,10 @@ int main(int argc, char** argv) {
     return(-1);
   }
   nsresult rev = NS_OK;
-  nsICharsetDetector *det = nsnull;
-  rev = GetDetector("universal_charset_detector", &det);
-  if(NS_FAILED(rev) || (nsnull == det) ){
+  nsUniversalChardetTest *det = new nsUniversalChardetTest;
+  if(nsnull == det){
     usage();
     printf("Error: Could not find Universal Detector\n");
-    printf("XPCOM ERROR CODE = %x\n", rev);
-    return(-1);
-  }
-  nsICharsetDetectionObserver *obs = nsnull;
-  rev = GetObserver(&obs);
-  if(NS_SUCCEEDED(rev)) {
-    rev = det->Init(obs);
-    NS_IF_RELEASE(obs);
-    if(NS_FAILED(rev))
-    {
-      printf("XPCOM ERROR CODE = %x\n", rev);
-      return(-1);
-    }
-  } else {
-    printf("XPCOM ERROR CODE = %x\n", rev);
     return(-1);
   }
 
@@ -142,26 +102,17 @@ int main(int argc, char** argv) {
     sz = read(0, buf, bs);
     if(sz > 0) {
       if(! done) {
-        rev = det->DoIt( buf, sz, &done);
+        rev = det->HandleData( buf, sz);
         if(NS_FAILED(rev))
         {
-          printf("XPCOM ERROR CODE = %x\n", rev);
+          printf("HANDLEDATA ERROR CODE = %x\n", rev);
           return(-1);
         }
       }
     }
-  } while((sz > 0) &&  (!done) );
+  } while((sz > 0) &&  (!det->done()) );
   //} while(sz > 0);
-  if(!done)
-  {
-    rev = det->Done();
-    if(NS_FAILED(rev))
-    {
-      printf("XPCOM ERROR CODE = %x\n", rev);
-      return(-1);
-    }
-  }
+  det->DataEnd();
 
-  NS_IF_RELEASE(det);
   return (0);
 }