Use chrome::kChromeVersion in installer::GetModulePath().

chrome/common/chrome_constants_win_unittest.cc

Index: chrome/common/chrome_constants_win_unittest.cc
diff --git a/chrome/common/chrome_constants_win_unittest.cc b/chrome/common/chrome_constants_win_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d9f2c35a520ca29a7dbdd2accc4151ec81d0aaba
--- /dev/null
+++ b/chrome/common/chrome_constants_win_unittest.cc
@@ -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.
+
+#include "chrome/common/chrome_constants.h"
+
+#include <memory>
+
+#include "base/file_version_info.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/win/current_module.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace chrome {
+
+// Verify that |kChromeVersion| is equal to the version in the VS_VERSION_INFO
+// resource of the current module.
+TEST(ChromeConstants, ChromeVersion) {
+  std::unique_ptr<FileVersionInfo> file_version_info(
+      FileVersionInfo::CreateFileVersionInfoForModule(CURRENT_MODULE()));

[grt (UTC plus 2), 2017/01/24 09:37:16]

we want a test that will fail specifically if the version in chrome.exe doesn't
match the version in kChromeVersion. is it possible to test that?
//chrome/test:unit_tests has an indirect dependency on //chrome:chrome_initial
(a.k.a. chrome.exe), so can this test read the version from chrome.exe in the
build output directory?

[fdoray, 2017/01/31 20:47:17]

Done.

+  ASSERT_TRUE(file_version_info);
+  EXPECT_EQ(base::UTF16ToASCII(file_version_info->file_version()),
+            kChromeVersion);
+}
+
+}  // namespace chrome