Verify that Update 2 of VS 2015 is used to build Chromium

base/win/windows_version.cc

 // Copyright (c) 2012 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 "base/win/windows_version.h"
 
 #include <windows.h>
 
 #include "base/file_version_info_win.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/registry.h"
 
+#if !defined(__clang__) && _MSC_FULL_VER < 190023918
+#error VS 2015 Update 2 or higher is required
+#endif
+
 namespace {
 typedef BOOL (WINAPI *GetProductInfoPtr)(DWORD, DWORD, DWORD, DWORD, PDWORD);
 }  // namespace
 
 namespace base {
 namespace win {
 
 namespace {
 
 // Helper to map a major.minor.x.build version (e.g. 6.1) to a Windows release.
@@ skipping 190 matching lines @@
     return WOW64_UNKNOWN;
   return is_wow64 ? WOW64_ENABLED : WOW64_DISABLED;
 }
 
 Version GetVersion() {
   return OSInfo::GetInstance()->version();
 }
 
 }  // namespace win
 }  // namespace base