Update from https://crrev.com/328418

third_party/libxml/BUILD.gn

 # Copyright (c) 2013 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.
 
 # Define an "os_include" variable that points at the OS-specific generated
 # headers.  These were generated by running the configure script offline.
 if (is_linux || is_android || is_nacl) {
   os_include = "linux"
 } else if (is_mac || is_ios) {
   os_include = "mac"
@@ skipping 47 matching lines @@
     "src/include/libxml/c14n.h",
     "src/include/libxml/catalog.h",
     "src/include/libxml/chvalid.h",
     "src/include/libxml/debugXML.h",
     "src/include/libxml/dict.h",
     "src/include/libxml/encoding.h",
     "src/include/libxml/entities.h",
     "src/include/libxml/globals.h",
     "src/include/libxml/hash.h",
     "src/include/libxml/list.h",
-    "src/include/libxml/nanoftp.h",
-    "src/include/libxml/nanohttp.h",
     "src/include/libxml/parser.h",
     "src/include/libxml/parserInternals.h",
     "src/include/libxml/pattern.h",
     "src/include/libxml/relaxng.h",
     "src/include/libxml/schemasInternals.h",
     "src/include/libxml/schematron.h",
     "src/include/libxml/threads.h",
     "src/include/libxml/tree.h",
     "src/include/libxml/uri.h",
     "src/include/libxml/valid.h",
@@ skipping 14 matching lines @@
     "src/include/libxml/xmlunicode.h",
     "src/include/libxml/xmlwriter.h",
     "src/include/libxml/xpath.h",
     "src/include/libxml/xpathInternals.h",
     "src/include/libxml/xpointer.h",
     "src/include/win32config.h",
     "src/include/wsockcompat.h",
     "src/legacy.c",
     "src/libxml.h",
     "src/list.c",
-    "src/nanoftp.c",
-    "src/nanohttp.c",
     "src/parser.c",
     "src/parserInternals.c",
     "src/pattern.c",
     "src/relaxng.c",
     "src/schematron.c",
     "src/threads.c",
     "src/tree.c",
 
     #"src/trio.c",
     #"src/trio.h",
@@ skipping 59 matching lines @@
       "-Wno-tautological-pointer-compare",
 
       # threads.c attempts to forward declare a pthread_equal which doesn't
       # match the prototype in pthreads.h
       "-Wno-ignored-attributes",
     ]
   }
 
   include_dirs = [ "$os_include" ]
 }