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

base/win/windows_version.cc

Index: base/win/windows_version.cc
diff --git a/base/win/windows_version.cc b/base/win/windows_version.cc
index eb3f4993d2cdc481869270ff50a59877b386767f..e8e6102343afc93b7168c0b53706372045f45528 100644
--- a/base/win/windows_version.cc
+++ b/base/win/windows_version.cc
@@ -13,6 +13,10 @@
 #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