XFA: Pass IFXJS_Runtime via V8 contexts, not V8 isolates

fpdfsdk/include/jsapi/fxjs_v8.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 // PDFium wrapper around V8 APIs. PDFium code should include this file rather
 // than including V8 headers directly.
 
 #ifndef FPDFSDK_INCLUDE_JSAPI_FXJS_V8_H_
@@ skipping 21 matching lines @@
   const wchar_t* srcline;
   unsigned linnum;
 };
 
 class FXJS_PerIsolateData {
  public:
   static void SetUp(v8::Isolate* pIsolate);
   static FXJS_PerIsolateData* Get(v8::Isolate* pIsolate);
 
   CFX_PtrArray m_ObjectDefnArray;
-  IFXJS_Runtime* m_pFXJSRuntime;
   CFXJSE_RuntimeData* m_pFXJSERuntimeData;
 
  protected:
-  FXJS_PerIsolateData()
-      : m_pFXJSRuntime(nullptr), m_pFXJSERuntimeData(nullptr) {}
+  FXJS_PerIsolateData() : m_pFXJSERuntimeData(nullptr) {}
 };
 
 extern const wchar_t kFXJSValueNameString[];
 extern const wchar_t kFXJSValueNameNumber[];
 extern const wchar_t kFXJSValueNameBoolean[];
 extern const wchar_t kFXJSValueNameDate[];
 extern const wchar_t kFXJSValueNameObject[];
 extern const wchar_t kFXJSValueNameFxobj[];
 extern const wchar_t kFXJSValueNameNull[];
 extern const wchar_t kFXJSValueNameUndefined[];
@@ skipping 157 matching lines @@
 double FXJS_ToNumber(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue);
 v8::Local<v8::Object> FXJS_ToObject(v8::Isolate* pIsolate,
                                     v8::Local<v8::Value> pValue);
 CFX_WideString FXJS_ToString(v8::Isolate* pIsolate,
                              v8::Local<v8::Value> pValue);
 v8::Local<v8::Array> FXJS_ToArray(v8::Isolate* pIsolate,
                                   v8::Local<v8::Value> pValue);
 void FXJS_ValueCopy(v8::Local<v8::Value>& pTo, v8::Local<v8::Value> pFrom);
 
 #endif  // FPDFSDK_INCLUDE_JSAPI_FXJS_V8_H_