x11: Remove X11 message-pump.

ui/gfx/gfx.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 544 matching lines @@
             '../../base/base.gyp:base',
             '../../build/linux/system.gyp:x11',
             'gfx_geometry',
           ],
           'defines': [
             'GFX_IMPLEMENTATION',
           ],
           'sources': [
             'x/x11_atom_cache.cc',
             'x/x11_atom_cache.h',
+            'x/x11_connection.cc',
+            'x/x11_connection.h',
             'x/x11_error_tracker.cc',
             'x/x11_error_tracker.h',
             'x/x11_types.cc',
             'x/x11_types.h',
           ],
         },
       ]
     }],
   ],
 }