Fixes to possible GetLastError bugs

chrome/browser/password_manager/password_manager_util_win.cc

Index: chrome/browser/password_manager/password_manager_util_win.cc
diff --git a/chrome/browser/password_manager/password_manager_util_win.cc b/chrome/browser/password_manager/password_manager_util_win.cc
index 994a174dc4ee42af5f6e6264e00abb378ac69aff..d5f7f3e8db3274844e033d02b14d17d243b6d3b7 100644
--- a/chrome/browser/password_manager/password_manager_util_win.cc
+++ b/chrome/browser/password_manager/password_manager_util_win.cc
@@ -129,6 +129,7 @@ bool CheckBlankPasswordWithPrefs(const WCHAR* username,
                                    LOGON32_PROVIDER_DEFAULT,
                                    &handle);
 
+    auto last_error = GetLastError();

[brucedawson, 2015/09/12 00:33:55]

CloseHandle could affect LastError. Unlikely, but possible.

     // Win XP and later return ERROR_ACCOUNT_RESTRICTION for blank password.
     if (logon_result)
       CloseHandle(handle);
@@ -138,7 +139,7 @@ bool CheckBlankPasswordWithPrefs(const WCHAR* username,
     // ERROR_ACCOUNT_RESTRICTION.
     // http://msdn.microsoft.com/en-us/library/windows/desktop/ms681385
     blank_password = (logon_result ||
-                      GetLastError() == ERROR_ACCOUNT_RESTRICTION);
+                      last_error == ERROR_ACCOUNT_RESTRICTION);
   }
 
   // Account for clock skew between pulling the password age and