Re-land "Only place primitive objects on the V8 global template.""

fpdfsdk/src/javascript/JS_Runtime.cpp

 // 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
 
 #include "fpdfsdk/src/javascript/JS_Runtime.h"
 
 #include "fpdfsdk/include/fsdk_mgr.h"  // For CPDFDoc_Environment.
 #include "fpdfsdk/include/javascript/IJavaScript.h"
@@ skipping 103 matching lines @@
 }
 
 CJS_Runtime::~CJS_Runtime() {
   for (auto* obs : m_observers)
     obs->OnDestroyed();
 
   for (int i = 0, sz = m_ContextArray.GetSize(); i < sz; i++)
     delete m_ContextArray.GetAt(i);
 
   m_ContextArray.RemoveAll();
+  m_ConstArrays.clear();
   FXJS_ReleaseRuntime(GetIsolate(), &m_context, &m_StaticObjects);
 
   m_pApp = NULL;
   m_pDocument = NULL;
   m_context.Reset();
 
   if (m_isolateManaged)
     m_isolate->Dispose();
 }
 
@@ skipping 115 matching lines @@
 }
 
 void CJS_Runtime::RemoveEventFromSet(const FieldEvent& event) {
   m_FieldEventSet.erase(event);
 }
 
 v8::Local<v8::Context> CJS_Runtime::NewJSContext() {
   return v8::Local<v8::Context>::New(m_isolate, m_context);
 }
 
+void CJS_Runtime::SetConstArray(const CFX_WideString& name,
+                                v8::Local<v8::Array> array) {
+  m_ConstArrays[name] = v8::Global<v8::Array>(m_isolate, array);
+}
+
+v8::Local<v8::Array> CJS_Runtime::GetConstArray(const CFX_WideString& name) {
+  return v8::Local<v8::Array>::New(m_isolate, m_ConstArrays[name]);
+}
+
 #ifdef PDF_ENABLE_XFA
 CFX_WideString ChangeObjName(const CFX_WideString& str) {
   CFX_WideString sRet = str;
   sRet.Replace(L"_", L".");
   return sRet;
 }
 FX_BOOL CJS_Runtime::GetHValueByName(const CFX_ByteStringC& utf8Name,
                                      FXJSE_HVALUE hValue) {
 #ifdef PDF_ENABLE_XFA
   const FX_CHAR* name = utf8Name.GetCStr();
@@ skipping 57 matching lines @@
 #endif
 void CJS_Runtime::AddObserver(Observer* observer) {
   ASSERT(!pdfium::ContainsKey(m_observers, observer));
   m_observers.insert(observer);
 }
 
 void CJS_Runtime::RemoveObserver(Observer* observer) {
   ASSERT(pdfium::ContainsKey(m_observers, observer));
   m_observers.erase(observer);
 }