Remove oak windows and its flags.

build/all.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': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'. Only used on Android.
     'android_app_targets%': [],
   },
@@ skipping 190 matching lines @@
         }],
         ['toolkit_views==1', {
           'dependencies': [
             '../ui/views/controls/webview/webview.gyp:*',
             '../ui/views/views.gyp:*',
           ],
         }],
         ['use_aura==1', {
           'dependencies': [
             '../ui/aura/aura.gyp:*',
-            '../ui/oak/oak.gyp:*',
           ],
         }],
         ['use_ash==1', {
           'dependencies': [
             '../ash/ash.gyp:*',
           ],
         }],
         ['remoting==1', {
           'dependencies': [
             '../remoting/remoting.gyp:*',
@@ skipping 1012 matching lines @@
             # http://crbug.com/157234
             #'../chrome/chrome.gyp:sync_integration_tests_run',
             '../chrome/chrome.gyp:unit_tests_run',
             '../net/net.gyp:net_unittests_run',
           ],
         }, # target_name: chromium_swarm_tests
       ],
     }],
   ], # conditions
 }