Revert 80819 due to failed tests

chrome/installer/util/install_util.cc

Index: chrome/installer/util/install_util.cc
===================================================================
--- chrome/installer/util/install_util.cc	(revision 80823)
+++ chrome/installer/util/install_util.cc	(working copy)
@@ -19,7 +19,6 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
-#include "base/sys_info.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "base/win/registry.h"
@@ -137,13 +136,15 @@
 }
 
 bool InstallUtil::IsOSSupported() {
+  int major, minor;
+  base::win::Version version = base::win::GetVersion();
+  base::win::GetServicePackLevel(&major, &minor);
+
   // We do not support Win2K or older, or XP without service pack 2.
-  VLOG(1) << base::SysInfo::OperatingSystemName() << ' '
-          << base::SysInfo::OperatingSystemVersion();
-  base::win::Version version = base::win::GetVersion();
+  VLOG(1) << "Windows Version: " << version
+          << ", Service Pack: " << major << "." << minor;
   return (version > base::win::VERSION_XP) ||
-      ((version == base::win::VERSION_XP) &&
-       (base::win::OSInfo::GetInstance()->service_pack().major >= 2));
+      (version == base::win::VERSION_XP && major >= 2);
 }
 
 void InstallUtil::WriteInstallerResult(bool system_install,