Keep "static" objects per-context rather than per isolate.

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 "JS_Runtime.h"
 
 #include "../../include/fsdk_mgr.h"  // For CPDFDoc_Environment.
 #include "../../include/javascript/IJavaScript.h"
@@ skipping 46 matching lines @@
       pExternalIsolate = reinterpret_cast<v8::Isolate*>(pPlatform->m_isolate);
       embedderDataSlot = pPlatform->m_v8EmbedderSlot;
     }
     FXJS_Initialize(embedderDataSlot, pExternalIsolate);
   }
   m_isolateManaged = FXJS_GetIsolate(&m_isolate);
   if (m_isolateManaged || FXJS_GlobalIsolateRefCount() == 0)
     DefineJSObjects();
 
   CJS_Context* pContext = (CJS_Context*)NewContext();
-  FXJS_InitializeRuntime(GetIsolate(), this, m_context);
+  FXJS_InitializeRuntime(GetIsolate(), this, &m_context, &m_StaticObjects);
   ReleaseContext(pContext);
 }
 
 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();
-  FXJS_ReleaseRuntime(GetIsolate(), m_context);
+  FXJS_ReleaseRuntime(GetIsolate(), &m_context, &m_StaticObjects);
 
   m_pApp = NULL;
   m_pDocument = NULL;
   m_context.Reset();
 
   if (m_isolateManaged)
     m_isolate->Dispose();
 }
 
 void CJS_Runtime::DefineJSObjects() {
@@ skipping 117 matching lines @@
 
 void CJS_Runtime::AddObserver(Observer* observer) {
   ASSERT(m_observers.find(observer) == m_observers.end());
   m_observers.insert(observer);
 }
 
 void CJS_Runtime::RemoveObserver(Observer* observer) {
   ASSERT(m_observers.find(observer) != m_observers.end());
   m_observers.erase(observer);
 }