Remove another potential stale CJS_Timer usage

fpdfsdk/javascript/JS_Object.h

Index: fpdfsdk/javascript/JS_Object.h
diff --git a/fpdfsdk/javascript/JS_Object.h b/fpdfsdk/javascript/JS_Object.h
index 146a7c93b57105b1060940963d174dfd1f57bd22..aec94c0362020f7b1a6bb29d462a3d4d2cd4bba2 100644
--- a/fpdfsdk/javascript/JS_Object.h
+++ b/fpdfsdk/javascript/JS_Object.h
@@ -18,12 +18,14 @@ class CJS_Context;
 class CJS_Object;
 class CJS_Timer;
 class CPDFDoc_Environment;
+
 class CJS_EmbedObj {
  public:
   explicit CJS_EmbedObj(CJS_Object* pJSObject);
   virtual ~CJS_EmbedObj();
 
   virtual void TimerProc(CJS_Timer* pTimer) {}
+  virtual void CancelProc(CJS_Timer* pTimer) {}
 
   CJS_Object* GetJSObject() const { return m_pJSObject; }
 
@@ -76,15 +78,15 @@ class CJS_Timer : public CJS_Runtime::Observer {
             uint32_t dwTimeOut);
   ~CJS_Timer() override;
 
-  void KillJSTimer();
+  static void Trigger(int nTimerID);
+  static void Cancel(int nTimerID);
 
-  int GetType() const { return m_nType; }
+  bool IsOneShot() const { return m_nType == 1; }
   uint32_t GetTimeOut() const { return m_dwTimeOut; }
+  int GetTimerID() const { return m_nTimerID; }
   CJS_Runtime* GetRuntime() const { return m_bValid ? m_pRuntime : nullptr; }
   CFX_WideString GetJScript() const { return m_swJScript; }
 
-  static void TimerProc(int idEvent);
-
  private:
   using TimerMap = std::map<FX_UINT, CJS_Timer*>;
   static TimerMap* GetGlobalTimerMap();