Pdfium does not create isolate when it runs in chromium

fpdfsdk/src/jsapi/fxjs_v8.cpp

Index: fpdfsdk/src/jsapi/fxjs_v8.cpp
diff --git a/fpdfsdk/src/jsapi/fxjs_v8.cpp b/fpdfsdk/src/jsapi/fxjs_v8.cpp
index 9b6b5fa445c46f7cadc61dae8fbc6a8c33551d66..f015f87136e001e94b5bfcd35c7f07557ac8fff1 100644
--- a/fpdfsdk/src/jsapi/fxjs_v8.cpp
+++ b/fpdfsdk/src/jsapi/fxjs_v8.cpp
@@ -370,11 +370,6 @@ void FXJS_ReleaseRuntime(v8::Isolate* pIsolate,
     return;
   pData->ReleaseDynamicObjsMap();
 
-#ifdef PDF_ENABLE_XFA
-  // XFA, if present, should have already cleaned itself up.
-  FXSYS_assert(!pData->m_pFXJSERuntimeData);
-#endif  // PDF_ENABLE_XFA
-
   int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
   for (int i = 0; i < maxID; ++i) {
     CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);