Include fixes for gcc >= 4.3

Patch by Joel Stanley <joel@jms.id.au>

Review URL: http://codereview.chromium.org/197055

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25699 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/gtk/menu_bar_helper.cc

@@ -4,6 +4,8 @@
 
 #include "chrome/browser/gtk/menu_bar_helper.h"
 
+#include <algorithm>
+
 #include "base/logging.h"
 #include "chrome/common/gtk_util.h"
 

net/base/dns_util.cc

@@ -4,6 +4,8 @@
 
 #include "net/base/dns_util.h"
 
+#include <cstring>
+
 namespace net {
 
 // Based on DJB's public domain code.