Merge to XFA: Remove CJS_RuntimeFactory

New edits in:
  fpdfsdk/include/fpdfxfa/fpdfxfa_app.h
  fpdfsdk/include/javascript/IJavaScript.h
  fpdfsdk/src/fpdfxfa/fpdfxfa_app.cpp

(cherry picked from commit bca779d0957965eb2ebfad5479e0894844749626)
Original Review URL: https://codereview.chromium.org/1360523004 .

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1348393007 .
diff --git a/fpdfsdk/include/javascript/IJavaScript.h b/fpdfsdk/include/javascript/IJavaScript.h
index 65dae74..d15ffc2 100644
--- a/fpdfsdk/include/javascript/IJavaScript.h
+++ b/fpdfsdk/include/javascript/IJavaScript.h
@@ -134,10 +134,11 @@
 
 class IFXJS_Runtime {
  public:
+  virtual ~IFXJS_Runtime() {}
+
   virtual IFXJS_Context* NewContext() = 0;
   virtual void ReleaseContext(IFXJS_Context* pContext) = 0;
   virtual IFXJS_Context* GetCurrentContext() = 0;
-
   virtual void SetReaderDocument(CPDFSDK_Document* pReaderDoc) = 0;
 
   virtual CPDFSDK_Document* GetReaderDocument() = 0;
@@ -146,24 +147,6 @@
                                   FXJSE_HVALUE hValue) = 0;
   virtual FX_BOOL SetHValueByName(const CFX_ByteStringC& utf8Name,
                                   FXJSE_HVALUE hValue) = 0;
-
- protected:
-  virtual ~IFXJS_Runtime() {}
-};
-
-class CJS_RuntimeFactory {
- public:
-  CJS_RuntimeFactory() : m_bInit(false), m_nRef(0) {}
-  ~CJS_RuntimeFactory();
-
-  IFXJS_Runtime* NewJSRuntime(CPDFDoc_Environment* pApp);
-  void DeleteJSRuntime(IFXJS_Runtime* pRuntime);
-  void AddRef();
-  void Release();
-
- private:
-  bool m_bInit;
-  int m_nRef;
 };
 
 #endif  // FPDFSDK_INCLUDE_JAVASCRIPT_IJAVASCRIPT_H_