use std::vector in more places in JavaScript bindings code.

fpdfsdk/javascript/JS_Runtime.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
 
 #ifndef FPDFSDK_JAVASCRIPT_JS_RUNTIME_H_
 #define FPDFSDK_JAVASCRIPT_JS_RUNTIME_H_
 
 #include <map>
+#include <memory>
 #include <set>
 #include <utility>
 #include <vector>
 
 #include "core/fxcrt/include/fx_basic.h"
 #include "fpdfsdk/include/javascript/IJavaScript.h"
 #include "fpdfsdk/include/jsapi/fxjs_v8.h"
 #include "fpdfsdk/javascript/JS_EventHandler.h"
 
 class CJS_Context;
@@ skipping 47 matching lines @@
   FX_BOOL SetHValueByName(const CFX_ByteStringC& utf8Name,
                           FXJSE_HVALUE hValue) override;
 #endif  // PDF_ENABLE_XFA
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
  private:
   void DefineJSObjects();
 
-  CFX_ArrayTemplate<CJS_Context*> m_ContextArray;
-  CPDFDoc_Environment* m_pApp;
+  std::vector<std::unique_ptr<CJS_Context>> m_ContextArray;
+  CPDFDoc_Environment* const m_pApp;
   CPDFSDK_Document* m_pDocument;
   FX_BOOL m_bBlocking;
   std::set<FieldEvent> m_FieldEventSet;
   v8::Isolate* m_isolate;
   bool m_isolateManaged;
   v8::Global<v8::Context> m_context;
   std::vector<v8::Global<v8::Object>*> m_StaticObjects;
   std::map<CFX_WideString, v8::Global<v8::Array>> m_ConstArrays;
   std::set<Observer*> m_observers;
 };
 
 #endif  // FPDFSDK_JAVASCRIPT_JS_RUNTIME_H_