gyp: unify toolkit_views usage

app/app_base.gypi

 # Copyright (c) 2010 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.
 
 {
   'target_defaults': {
     'variables': {
       'app_base_target': 0,
     },
     'target_conditions': [
@@ skipping 191 matching lines @@
       'conditions': [
         ['OS=="linux" or OS=="freebsd" or OS=="openbsd"', {
           'dependencies': [
             # font_gtk.cc uses fontconfig.
             # TODO(evanm): I think this is wrong; it should just use GTK.
             '../build/linux/system.gyp:fontconfig',
             '../build/linux/system.gyp:gtk',
             '../build/linux/system.gyp:x11',
           ],
           'conditions': [
-            ['toolkit_views==0 and chromeos==0', {
+            ['toolkit_views==0', {
               # Note: because of gyp predence rules this has to be defined as
               # 'sources/' rather than 'sources!'.
               'sources/': [
                 ['exclude', '^os_exchange_data.cc'],
                 ['exclude', '^os_exchange_data.h'],
                 ['exclude', '^os_exchange_data_provider_gtk.cc'],
                 ['exclude', '^os_exchange_data_provider_gtk.h'],
                 ['exclude', '^drag_drop_types_gtk.cc'],
               ],
             }],
-            ['toolkit_views==1 or chromeos==1', {
+            ['toolkit_views==1', {
               # Note: because of gyp predence rules this has to be defined as
               # 'sources/' rather than 'sources!'.
               'sources/': [
                 ['include', '^os_exchange_data.cc'],
               ],
             }],
           ],
         }],
         ['OS!="win"', {
           'sources!': [
@@ skipping 54 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }