Bug fix: Translate: leak of a ComboboxModel

ui/base/models/simple_combobox_model.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_BASE_MODELS_SIMPLE_COMBOBOX_MODEL_H_
+#define UI_BASE_MODELS_SIMPLE_COMBOBOX_MODEL_H_
+
+#include "ui/base/models/combobox_model.h"
+
+#include <vector>
+
+namespace ui {
+
+// A simple data model for a combobox that takes a string16 vector as the items.
+// An empty string will be a separator.
+class UI_BASE_EXPORT SimpleComboboxModel : public ComboboxModel {
+ public:
+  explicit SimpleComboboxModel(const std::vector<base::string16>& items);
+  virtual ~SimpleComboboxModel();
+
+  // ui::ComboboxModel:
+  virtual int GetItemCount() const OVERRIDE;
+  virtual base::string16 GetItemAt(int index) OVERRIDE;
+  virtual bool IsItemSeparatorAt(int index) OVERRIDE;
+  virtual int GetDefaultIndex() const OVERRIDE;
+
+ private:
+  const std::vector<base::string16> items_;
+
+  DISALLOW_COPY_AND_ASSIGN(SimpleComboboxModel);
+};
+
+}  // namespace ui
+
+#endif  // UI_BASE_MODELS_SIMPLE_COMBOBOX_MODEL_H_