GN: take over CommandBuffer bot

gyp/gputest.gyp

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'targets': [
     {
       'target_name': 'skgputest',
       'product_name': 'skia_skgputest',
       'type': 'static_library',
@@ skipping 82 matching lines @@
         [ 'skia_mesa == 0', {
           'sources/': [
             ['exclude', '_mesa\.(h|cpp)$'],
           ],
         }],
         [ 'skia_angle == 0', {
           'sources/': [
             ['exclude', '_angle\.(h|cpp)$'],
           ],
         }],
-        [ 'skia_command_buffer == 0', {
-          'sources/': [ ['exclude', '_command_buffer\.(h|cpp)$'], ],
-        }],
       ],
     },
     {
       'target_name': 'osmesa',
       'type': 'none',
       'direct_dependent_settings': {
         'link_settings': { 'libraries': [ '-lOSMesa', ], },
         'conditions': [
           [ 'skia_os == "mac"', {
             'link_settings': { 'library_dirs' : [ '/opt/X11/lib' ], },
             'include_dirs': [ '/opt/X11/include', ],
           }],
         ],
       },
     },
   ],
 }