diff -r 000000000000 -r 6474c204b198 extensions/universalchardet/src/base/nsGB2312Prober.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/extensions/universalchardet/src/base/nsGB2312Prober.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,43 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsGB2312Prober_h__
+#define nsGB2312Prober_h__
+
+#include "nsCharSetProber.h"
+#include "nsCodingStateMachine.h"
+#include "CharDistribution.h"
+
+// We use gb18030 to replace gb2312, because 18030 is a superset. 
+
+class nsGB18030Prober: public nsCharSetProber {
+public:
+  nsGB18030Prober(bool aIsPreferredLanguage)
+    :mIsPreferredLanguage(aIsPreferredLanguage)
+  {mCodingSM = new nsCodingStateMachine(&GB18030SMModel);
+    Reset();}
+  virtual ~nsGB18030Prober(void){delete mCodingSM;}
+  nsProbingState HandleData(const char* aBuf, uint32_t aLen);
+  const char* GetCharSetName() {return "gb18030";}
+  nsProbingState GetState(void) {return mState;}
+  void      Reset(void);
+  float     GetConfidence(void);
+
+protected:
+  void      GetDistribution(uint32_t aCharLen, const char* aStr);
+  
+  nsCodingStateMachine* mCodingSM;
+  nsProbingState mState;
+
+  //GB2312ContextAnalysis mContextAnalyser;
+  GB2312DistributionAnalysis mDistributionAnalyser;
+  char mLastChar[2];
+  bool mIsPreferredLanguage;
+
+};
+
+
+#endif /* nsGB2312Prober_h__ */
+