Use uint16 for port numbers, net/ edition

net/dns/host_resolver.h

Index: net/dns/host_resolver.h
diff --git a/net/dns/host_resolver.h b/net/dns/host_resolver.h
index 2823c4ba651bbb0f025ba8725867e1d97783ac01..0203dc9a5d9650600ec10d6fa73e08efd4f3f45a 100644
--- a/net/dns/host_resolver.h
+++ b/net/dns/host_resolver.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/address_family.h"
 #include "net/base/completion_callback.h"
@@ -67,7 +68,7 @@ class NET_EXPORT HostResolver {
       host_port_pair_ = host_port_pair;
     }
 
-    int port() const { return host_port_pair_.port(); }
+    uint16 port() const { return host_port_pair_.port(); }
     const std::string& hostname() const { return host_port_pair_.host(); }
 
     AddressFamily address_family() const { return address_family_; }