split port_util.h off of net_util.h

net/base/host_port_pair.cc

Index: net/base/host_port_pair.cc
diff --git a/net/base/host_port_pair.cc b/net/base/host_port_pair.cc
index 3c40be9d985b7054e66eb6bfc2c81fa2e157d44a..3fbad2b60b52cd3cf7c903590e9240f646db37ba 100644
--- a/net/base/host_port_pair.cc
+++ b/net/base/host_port_pair.cc
@@ -11,6 +11,7 @@
 #include "base/strings/stringprintf.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_util.h"

[mmenke, 2015/07/16 15:07:57]

What's net util needed for in this file?

[eroman, 2015/07/21 01:04:04]

Done.

As an aside, do you know if we have include-what-you-use working for Chromium,
or some other automatic header fix-up tool?

Kind of tiresome to do these manually, and when I do I sometimes end up deleting
things that are being transitively included elsewhere, since I am just checking
that compilation still works  :)

+#include "net/base/port_util.h"
 #include "url/gurl.h"
 
 namespace net {