Add infrastructure enabling tests of installer upgrade scenarios....

chrome/installer/test/resource_updater.h

+// Copyright (c) 2010 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.
+
+// A helper class for updating resources in portable executable files.
+
+#ifndef CHROME_INSTALLER_TEST_RESOURCE_UPDATER_H_
+#define CHROME_INSTALLER_TEST_RESOURCE_UPDATER_H_
+#pragma once
+
+#include <windows.h>
+
+#include <string>
+#include <utility>
+
+#include "base/basictypes.h"
+
+class FilePath;
+
+namespace upgrade_test {
+
+// Updates resources in a PE image file.
+class ResourceUpdater {
+ public:
+  ResourceUpdater();
+  ~ResourceUpdater();
+
+  // Loads |pe_image_path| in preparation for updating its resources.
+  bool Initialize(const FilePath& pe_image_path);
+
+  // Replaces the contents of the resource |name| of |type| and |language_id|
+  // with the contents of |input_file|, returning true on success.
+  bool Update(const std::wstring& name, const std::wstring& type,
+              WORD language_id, const FilePath& input_file);
+
+  // Commits all updates to the file on disk.
+  bool Commit();
+
+ private:
+  HANDLE handle_;
+  DISALLOW_COPY_AND_ASSIGN(ResourceUpdater);
+};  // class ResourceUpdater
+
+}  // namespace upgrade_test
+
+#endif  // CHROME_INSTALLER_TEST_RESOURCE_UPDATER_H_