Remove msvs_guids from third_party, webkit, tools and views.

third_party/libxml/libxml.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'conditions': [
       # Define an "os_include" variable that points at the OS-specific generated
       # headers.  These were generated by running the configure script offline.
       ['os_posix == 1 and OS != "mac"', {
@@ skipping 21 matching lines @@
           'link_settings': {
             'ldflags': [
               '<!@(pkg-config --libs-only-L --libs-only-other libxml-2.0)',
             ],
             'libraries': [
               '<!@(pkg-config --libs-only-l libxml-2.0)',
             ],
           },
         }, { # else: os_posix != 1 or OS == "mac" or ! use_system_libxml
           'type': 'static_library',
-          'msvs_guid': 'F9810DE8-CBC3-4605-A7B1-ECA2D5292FD7',
           'sources': [
             'linux/config.h',
             'linux/include/libxml/xmlversion.h',
             'mac/config.h',
             'mac/include/libxml/xmlversion.h',
             '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',
@@ skipping 145 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: