Add a utility class to retrieve the components of an MSI product

chrome/browser/conflicts/msi_util_win.h

Index: chrome/browser/conflicts/msi_util_win.h
diff --git a/chrome/browser/conflicts/msi_util_win.h b/chrome/browser/conflicts/msi_util_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..4045cd6d212b1f17b3dce237c1b4664de15ea49d
--- /dev/null
+++ b/chrome/browser/conflicts/msi_util_win.h
@@ -0,0 +1,26 @@
+// Copyright 2017 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 CHROME_BROWSER_CONFLICTS_MSI_UTIL_WIN_H_
+#define CHROME_BROWSER_CONFLICTS_MSI_UTIL_WIN_H_
+
+#include <vector>
+
+#include "base/callback.h"
+#include "base/strings/string16.h"
+
+class MsiUtil {
+ public:
+  // Using the Microsoft Installer API, retrieves the path of all the components
+  // for a given product. This function should be called on a thread that allows
+  // access to the file system. Returns false if any error occured, including if
+  // the |product_guid| passed is not a GUID.
+  //
+  // Note: Marked virtual to allow mocking.
+  virtual bool GetMsiComponentPaths(
+      const base::string16& product_guid,
+      std::vector<base::string16>* component_paths);
+};
+
+#endif  // CHROME_BROWSER_CONFLICTS_MSI_UTIL_WIN_H_