Implement install module verification metric.

chrome/browser/install_module_verifier_unittest_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/install_module_verifier_win.h"
+
+#include <string>
+#include <vector>
+#include "base/bind.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "chrome/browser/enumerate_modules_model_win.h"
+#include "chrome/browser/expected_install_modules_win.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+void MockCallback(std::vector<unsigned int>* reported_ids,
+                  unsigned int module_id) {
+  reported_ids->push_back(module_id);
+}
+
+void AddModule(base::ListValue* list,
+               ModuleEnumerator::ModuleType type,
+               const std::string& name) {
+  scoped_ptr<base::DictionaryValue> data(new DictionaryValue());
+  data->SetInteger("type", type);
+  data->SetString("name", name);
+  list->Append(data.release());
+}
+
+TEST(InstallModuleVerifierTest, TestCase) {
+  std::vector<unsigned int> reported_ids;
+
+  scoped_ptr<base::ListValue> list(new ListValue());
+
+  VerifyInstalledModules(
+      list.get(), base::Bind(&MockCallback, base::Unretained(&reported_ids)));
+  ASSERT_TRUE(reported_ids.empty());
+
+  AddModule(list.get(), ModuleEnumerator::SHELL_EXTENSION, "chrome.dll");
+  AddModule(
+      list.get(), ModuleEnumerator::WINSOCK_MODULE_REGISTRATION, "chrome.dll");
+
+  VerifyInstalledModules(
+      list.get(), base::Bind(&MockCallback, base::Unretained(&reported_ids)));
+  ASSERT_TRUE(reported_ids.empty());

[MAD, 2013/09/13 20:15:33]

These tests that we properly ignore module types, but it doesn't test that we
ignore DLL names not in the array. We should add a string unlikely to be in the
array (and maybe even add an ASSERT that it isn't) and make sure it doesn't get
recorded...

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

Done.

+
+  AddModule(list.get(), ModuleEnumerator::LOADED_MODULE, "chrome.dll");
+
+  VerifyInstalledModules(
+      list.get(), base::Bind(&MockCallback, base::Unretained(&reported_ids)));
+  ASSERT_EQ(1, reported_ids.size());
+  ASSERT_EQ(CalculateInstalledModuleDigest("chrome.dll"),
+            kExpectedInstallModuleDigests[reported_ids[0]]);
+}