Revert 80819 due to failed tests

chrome/installer/util/google_chrome_distribution.cc

Index: chrome/installer/util/google_chrome_distribution.cc
===================================================================
--- chrome/installer/util/google_chrome_distribution.cc	(revision 80823)
+++ chrome/installer/util/google_chrome_distribution.cc	(working copy)
@@ -326,10 +326,14 @@
   // need to escape the string before using it in a URL.
   const std::wstring kVersionParam = L"crversion";
   const std::wstring kOSParam = L"os";
-  base::win::OSInfo::VersionNumber version_number =
-      base::win::OSInfo::GetInstance()->version_number();
-  std::wstring os_version = StringPrintf(L"%d.%d.%d", version_number.major,
-      version_number.minor, version_number.build);
+  std::wstring os_version = L"na";
+  OSVERSIONINFO version_info;
+  version_info.dwOSVersionInfoSize = sizeof(version_info);
+  if (GetVersionEx(&version_info)) {
+    os_version = StringPrintf(L"%d.%d.%d", version_info.dwMajorVersion,
+                                           version_info.dwMinorVersion,
+                                           version_info.dwBuildNumber);
+  }
 
   FilePath iexplore;
   if (!PathService::Get(base::DIR_PROGRAM_FILES, &iexplore))