Clean up singleton implementation

fpdfsdk/javascript/JS_KeyValue.cpp

Index: fpdfsdk/javascript/JS_KeyValue.cpp
diff --git a/fpdfsdk/javascript/JS_KeyValue.cpp b/fpdfsdk/javascript/JS_KeyValue.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..7d1e575377a5795d74e838c82c9361a8cce8a960
--- /dev/null
+++ b/fpdfsdk/javascript/JS_KeyValue.cpp
@@ -0,0 +1,70 @@
+// Copyright 2016 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/javascript/JS_KeyValue.h"
+
+CJS_GlobalVariableArray::CJS_GlobalVariableArray() {}
+
+CJS_GlobalVariableArray::~CJS_GlobalVariableArray() {}
+
+void CJS_GlobalVariableArray::Copy(const CJS_GlobalVariableArray& array) {
+  m_Array.clear();
+  for (int i = 0, sz = array.Count(); i < sz; i++) {
+    CJS_KeyValue* pOldObjData = array.GetAt(i);
+    switch (pOldObjData->nType) {
+      case JS_GlobalDataType::NUMBER: {
+        CJS_KeyValue* pNewObjData = new CJS_KeyValue;
+        pNewObjData->sKey = pOldObjData->sKey;
+        pNewObjData->nType = pOldObjData->nType;
+        pNewObjData->dData = pOldObjData->dData;
+        Add(pNewObjData);
+      } break;
+      case JS_GlobalDataType::BOOLEAN: {
+        CJS_KeyValue* pNewObjData = new CJS_KeyValue;
+        pNewObjData->sKey = pOldObjData->sKey;
+        pNewObjData->nType = pOldObjData->nType;
+        pNewObjData->bData = pOldObjData->bData;
+        Add(pNewObjData);
+      } break;
+      case JS_GlobalDataType::STRING: {
+        CJS_KeyValue* pNewObjData = new CJS_KeyValue;
+        pNewObjData->sKey = pOldObjData->sKey;
+        pNewObjData->nType = pOldObjData->nType;
+        pNewObjData->sData = pOldObjData->sData;
+        Add(pNewObjData);
+      } break;
+      case JS_GlobalDataType::OBJECT: {
+        CJS_KeyValue* pNewObjData = new CJS_KeyValue;
+        pNewObjData->sKey = pOldObjData->sKey;
+        pNewObjData->nType = pOldObjData->nType;
+        pNewObjData->objData.Copy(pOldObjData->objData);
+        Add(pNewObjData);
+      } break;
+      case JS_GlobalDataType::NULLOBJ: {
+        CJS_KeyValue* pNewObjData = new CJS_KeyValue;
+        pNewObjData->sKey = pOldObjData->sKey;
+        pNewObjData->nType = pOldObjData->nType;
+        Add(pNewObjData);
+      } break;
+    }
+  }
+}
+
+void CJS_GlobalVariableArray::Add(CJS_KeyValue* p) {
+  m_Array.push_back(std::unique_ptr<CJS_KeyValue>(p));
+}
+
+int CJS_GlobalVariableArray::Count() const {
+  return m_Array.size();
+}
+
+CJS_KeyValue* CJS_GlobalVariableArray::GetAt(int index) const {
+  return m_Array.at(index).get();
+}
+
+CJS_KeyValue::CJS_KeyValue() {}
+
+CJS_KeyValue::~CJS_KeyValue() {}