Update libxml to 2.7.7.

third_party/libxml/README.chromium

Index: third_party/libxml/README.chromium
diff --git a/third_party/libxml/README.chromium b/third_party/libxml/README.chromium
index 93312ff1a92787d007d863349a68be992be8812a..94e2aafb11efc5acc682b71ab30b37d3efa3a10d 100644
--- a/third_party/libxml/README.chromium
+++ b/third_party/libxml/README.chromium
@@ -2,41 +2,28 @@ Name: libxml
 URL: http://xmlsoft.org
 
 This directory contains a partial snapshot of the libxml library
-with the patch in google.patch applied. google.patch
-includes the following modifications : 
-* Modified encoding.c to fix memory leak (06/13/2008)
-* Modified win32/configure.js NOT to use iconv
-* Modified win32/configure.js to be able to clobber a read-only Makefile
-* Modified configure to enable icu.
-* Modified configure to not generate Makefiles and other unused build files..
-* Added pre-generated Linux headers to linux/.
-* Changed 'LoadLibrary' to 'LoadLibraryA' in xmlmodule.c (used with
-  'const char*' as an argument)
-* Changed bogus '(unsigned long)' cast to '(unsigned short)' in xmlregexp.c
-* Made it possible to use ICU converters instead of iconv. 
-* Added nsParent member to _xmlParseCtxt in include/libxml/parser.h, 
-  added a check to nsParent in xmlGetNamespace() in parser.c. 
-  This allows parsed entities to inherit namespaces.
-  (http://bugzilla.gnome.org/show_bug.cgi?id=502960 )
-* Applied security patch located at https://bugzilla.redhat.com/show_bug.cgi?id=461015
-* Applied v2.6.26 version of security patch located at https://bugzilla.redhat.com/show_bug.cgi?id=515195
+with the patches in the patches/ directories applied.
+See the files in that directory for discussion of their effects.
 
-Current version: 2.6.32
+Current version: 2.7.7.
 
 To import a new snapshot of libxml:
 
 - Visit http://xmlsoft.org/downloads.html and download the latest source
   distribution.
 - Copy the files into this directory, omitting files which have been omitted
-  here.
-- Remove include/libxml/xmlversion.h.
-- Apply the patch in google.patch and reconcile any conflict
-- Then, make any necessary changes to remove compile-time warnings.
-- Update google.patch
-- On a Linux system, 'cd linux && sh ../configure --without-iconv' to
-  generate config.h and include/libxml/xmlversion.h for Linux.
-- On a Mac, 'cd mac && sh ../configure --without-iconv' to generate config.h
-  and include/libxml/xmlversion.h for Macs.
+  here.  E.g.:  for i in $(find . -type f); do cp ../libxml-newver/$i $i; done
+  This should clobber all local changes to this directory.
+- Apply the patches in patches/ and fix any problems.
+  UPDATE THOSE PATCHES OR EVAN WILL HUNT YOU DOWN.
+- On a Linux system,
+    $ cd linux
+    $ ../configure --without-iconv --without-ftp --without-http
+  to generate config.h and include/libxml/xmlversion.h for Linux.
+- On a Mac,
+    $ cd mac
+    $ ../configure --without-iconv --without-ftp --without-http
+  to generate config.h and include/libxml/xmlversion.h for Macs.
 - On Windows, run build/generate-win32-headers.bat to re-generate config.h and
   include/libxml/xmlversion.h for Windows builds.
 - Update this README to reflect the new version number.