Implement install module verification metric.

chrome/browser/expected_install_modules_win.cc

+// 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.
+
+#include "chrome/browser/expected_install_modules_win.h"
+
+std::string CalculateInstalledModuleDigest(const std::string& module_name) {
+  return module_name;
+}

[robertshield, 2013/09/13 17:26:05]

minor nit, move kExpectedInstallModuleDigests up

[erikwright (departed), 2013/09/13 20:19:56]

Done.

+
+// Do not reorder these elements. Their index is used as an ID in metrics
+// reporting.
+extern const char* kExpectedInstallModuleDigests[] = {
+  "chrome.dll",
+  "icudt.dll",
+  "chrome_frame_helper.dll",
+  "d3dcompiler_46.dll",
+  "libglesv2.dll",
+  "metro_driver.dll",
+  "pdf.dll",
+  "widevinecdmadapter.dll",
+  "chrome_child.dll",
+  "d3dcompiler_43.dll",
+  "ffmpegsumo.dll",
+  "libegl.dll",
+  "libpeerconnection.dll",
+  "npchrome_frame.dll",
+  "ppgooglenaclpluginchrome.dll",
+  "xinput1_3.dll",
+  0
+};