ui_touch_selection_unittests.isolate: Don't bundle osmesa on Win and Mac.

ui/touch_selection/ui_touch_selection_unittests.isolate

 # Copyright (c) 2014 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.
 {
   'conditions': [
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'files': [
           '../../testing/test_env.py',
           '<(PRODUCT_DIR)/ui_touch_selection_unittests<(EXECUTABLE_SUFFIX)',
@@ skipping 17 matching lines @@
         ],
       },
     }],
     ['OS=="linux" and use_ozone==0', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
-    ['OS=="mac"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/osmesa.so',
-        ],
-      },
-    }],
-    ['OS=="win"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/osmesa.dll',
-        ],
-      },
-    }],
     ['OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
           '../../testing/test_env.py',
           '<(PRODUCT_DIR)/ui_touch_selection_unittests<(EXECUTABLE_SUFFIX)',
           '--brave-new-test-launcher',
           '--test-launcher-bot-mode',
           '--asan=<(asan)',
           '--lsan=<(lsan)',
         ],
       },
     }],
   ],
   'includes': [
     '../../base/base.isolate',
   ],
 }