Move some v8 objects from CJS back into FXJS

fpdfsdk/javascript/cjs_runtime.h

Index: fpdfsdk/javascript/cjs_runtime.h
diff --git a/fpdfsdk/javascript/cjs_runtime.h b/fpdfsdk/javascript/cjs_runtime.h
index c43a34b72012dde80e57fe158e3a7cf3c4dbd652..506bfab967b19a09d8ebb9361bb65f6079acf88a 100644
--- a/fpdfsdk/javascript/cjs_runtime.h
+++ b/fpdfsdk/javascript/cjs_runtime.h
@@ -20,7 +20,7 @@
 
 class CJS_Context;
 
-class CJS_Runtime : public IJS_Runtime {
+class CJS_Runtime : public IJS_Runtime, public CFXJS_Engine {
  public:
   class Observer {
    public:
@@ -79,11 +79,6 @@ class CJS_Runtime : public IJS_Runtime {
   CPDFSDK_Document* m_pDocument;
   FX_BOOL m_bBlocking;
   std::set<FieldEvent> m_FieldEventSet;
-  v8::Isolate* m_isolate;
-  bool m_isolateManaged;
-  v8::Global<v8::Context> m_context;
-  std::vector<v8::Global<v8::Object>*> m_StaticObjects;
-  std::map<CFX_WideString, v8::Global<v8::Array>> m_ConstArrays;
   std::set<Observer*> m_observers;
 };