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"
+#include "base/strings/string_util.h"
+
+// Do not reorder these elements. Their index is used as an ID in metrics
+// reporting.
+extern const char* kExpectedInstallModules[] = {
+  "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
+};
+
+std::string CanonicalizeModuleName(const std::string& module_name) {
+  std::string result;
+  size_t slash = module_name.rfind('/');

[MAD, 2013/09/16 14:42:43]

On windows, you should be looking for '\'...

And why not use FilePath::BaseName instead?

[erikwright (departed), 2013/09/16 20:04:55]

Done.

+  if (slash != std::string::npos)
+    result = module_name.substr(slash + 1);
+  else
+    result = module_name;
+  StringToLowerASCII(&result);
+  return result;
+}