Rationalize linux vs x11 in ui

gpu/gles2_conform_support/gles2_conform_support.gyp

 # 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.
 
 {
   'variables': {
     # These are defined here because we want to be able to compile them on
     # the buildbots without needed the OpenGL ES 2.0 conformance tests
     # which are not open source.
     'bootstrap_sources_native': [
       'native/main.cc',
     ],
     'conditions': [
       ['OS=="linux"', {
         'bootstrap_sources_native': [
           'native/egl_native.cc',
-          'native/egl_native_linux.cc',
+          'native/egl_native_x11.cc',
         ],
       }],
       ['OS=="win"', {
         'bootstrap_sources_native': [
           'native/egl_native.cc',
           'native/egl_native_win.cc',
         ],
       }],
     ],
   },
@@ skipping 93 matching lines @@
         'EGLAPI=',
         'EGLAPIENTRY=',
       ],
       'sources': [
         '<@(bootstrap_sources_native)',
         'gles2_conform_support.c'
       ],
     },
   ],
 }