Make http LayoutTests work in Debian with Apache 2.4.

Tools/Scripts/webkitperl/httpd.pm

 # Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved
 # Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
 # Copyright (C) 2010 Andras Becsi (abecsi@inf.u-szeged.hu), University of Szeged
 # Copyright (C) 2011 Research In Motion Limited. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 #
 # 1.  Redistributions of source code must retain the above copyright
@@ skipping 138 matching lines @@
 
     if (isCygwin()) {
         my $libPHP4DllPath = "/usr/lib/apache/libphp4.dll";
         # FIXME: run-webkit-tests should not modify the user's system, especially not in this method!
         unless (-x $libPHP4DllPath) {
             copy("$httpdConfDirectory/libphp4.dll", $libPHP4DllPath);
             chmod(0755, $libPHP4DllPath);
         }
         $httpdConfig = "cygwin-httpd.conf";  # This is an apache 1.3 config.
     } elsif (isDebianBased()) {
-        $httpdConfig = "apache2-debian-httpd.conf";
+        $httpdConfig = "debian-httpd-$apacheVersion.conf";
     } elsif (isFedoraBased()) {
         $httpdConfig = "fedora-httpd-$apacheVersion.conf";
     } else {
         # All other ports use apache2, so just use our default apache2 config.
         $httpdConfig = "apache2-httpd.conf";
     }
     return "$httpdConfDirectory/$httpdConfig";
 }
 
 sub openHTTPD(@)
@@ skipping 168 matching lines @@
 }
 
 sub getWaitTime
 {
     my $waitTime = 0;
     if ($waitBeginTime && $waitEndTime) {
         $waitTime = $waitEndTime - $waitBeginTime;
     }
     return $waitTime;
 }