Implement install module verification metric.

chrome/browser/expected_install_modules_win.h

Index: chrome/browser/expected_install_modules_win.h
diff --git a/chrome/browser/expected_install_modules_win.h b/chrome/browser/expected_install_modules_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..cd62b43e27c954f2fcd39326225ac84212558bf6
--- /dev/null
+++ b/chrome/browser/expected_install_modules_win.h
@@ -0,0 +1,18 @@
+// Copyright (c) 2013 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_EXPECTED_INSTALL_MODULES_WIN_H_
+#define CHROME_BROWSER_EXPECTED_INSTALL_MODULES_WIN_H_
+
+#include "base/strings/string16.h"
+
+// A list of modules we expect to find after a successful Chrome installation.
+// If any are missing it implies an installation or upgrade failure.
+extern const base::char16* kExpectedInstallModules[];
+
+// Converts a module name, possibly including a path prefix, to a canonical
+// format for comparison with the values in kExpectedInstallModules.
+base::string16 CanonicalizeModuleName(const base::string16& module_name);
+
+#endif  // CHROME_BROWSER_EXPECTED_INSTALL_MODULES_WIN_H_