XFA: contention between FXJSE and FXJS over isolate data slots

fpdfsdk/src/javascript/JS_Runtime.cpp

Index: fpdfsdk/src/javascript/JS_Runtime.cpp
diff --git a/fpdfsdk/src/javascript/JS_Runtime.cpp b/fpdfsdk/src/javascript/JS_Runtime.cpp
index a85067be1bc93434a1d8d632c3010acbc4617b81..f3114b26dbdbdd62b2c347db9b1d5f3b73e53b46 100644
--- a/fpdfsdk/src/javascript/JS_Runtime.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime.cpp
@@ -81,7 +81,7 @@ CJS_Runtime::CJS_Runtime(CPDFDoc_Environment* pApp)
   v8::Isolate::Scope isolate_scope(isolate);
   v8::Locker locker(isolate);
   v8::HandleScope handle_scope(isolate);
-  if (CPDFXFA_App::GetInstance()->InitRuntime(FALSE)) {
+  if (CPDFXFA_App::GetInstance()->IsJavaScriptInitialized()) {
     CJS_Context* pContext = (CJS_Context*)NewContext();
     JS_InitializeRuntime(GetIsolate(), this, pContext, m_context);
     ReleaseContext(pContext);
@@ -93,6 +93,7 @@ CJS_Runtime::CJS_Runtime(CPDFDoc_Environment* pApp)
     embedderDataSlot = pApp->GetFormFillInfo()->m_pJsPlatform->m_v8EmbedderSlot;
   JS_Initialize(embedderDataSlot);
   DefineJSObjects();
+  CPDFXFA_App::GetInstance()->SetJavaScriptInitialized(TRUE);
 
   CJS_Context* pContext = (CJS_Context*)NewContext();
   JS_InitializeRuntime(GetIsolate(), this, pContext, m_context);