Move libxml_utils from chrome/common to third_party/libxml/chromium.

chrome/common/extensions/update_manifest.cc

Index: chrome/common/extensions/update_manifest.cc
diff --git a/chrome/common/extensions/update_manifest.cc b/chrome/common/extensions/update_manifest.cc
index 60ac292a7bd709282e30bd8dfad3bf2efe7ad776..acc02b67b27af8a1614b365633949c770218084c 100644
--- a/chrome/common/extensions/update_manifest.cc
+++ b/chrome/common/extensions/update_manifest.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -12,8 +12,8 @@
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
 #include "base/version.h"
-#include "chrome/common/libxml_utils.h"
 #include "libxml/tree.h"
+#include "third_party/libxml/chromium/libxml_utils.h"
 
 static const char* kExpectedGupdateProtocol = "2.0";
 static const char* kExpectedGupdateXmlns =