Add base::HostToNetXX() & NetToHostXX(), and use them to replace htonX() & ntohX() in Chrome.

net/spdy/spdy_framer_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <algorithm>
 #include <iostream>
 
 #include "base/memory/scoped_ptr.h"
 #include "net/spdy/spdy_framer.h"
 #include "net/spdy/spdy_protocol.h"
@@ skipping 2592 matching lines @@
     framer.set_visitor(&visitor);
     framer.ProcessInput("HTTP/1.0", 8);
     EXPECT_TRUE(framer.probable_http_response());
   }
 }
 
 TEST_P(SpdyFramerTest, SettingsFlagsAndId) {
   const uint32 kId = 0x020304;
   const uint32 kFlags = 0x01;
   const uint32 kWireFormat =
-      htonl(IsSpdy2() ? 0x04030201 : 0x01020304);
+      base::HostToNet32(IsSpdy2() ? 0x04030201 : 0x01020304);
 
   SettingsFlagsAndId id_and_flags =
       SettingsFlagsAndId::FromWireFormat(spdy_version_, kWireFormat);
   EXPECT_EQ(kId, id_and_flags.id());
   EXPECT_EQ(kFlags, id_and_flags.flags());
   EXPECT_EQ(kWireFormat, id_and_flags.GetWireFormat(spdy_version_));
 }
 
 }  // namespace