chromeos: Stop depending on Libcros

chrome/chrome_browser_extensions.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser_extensions',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 642 matching lines @@
             }],
             ['chromeos==1',{
               'sources/': [
                 ['exclude', '^browser/extensions/extension_tts_api_linux.cc'],
               ],
               'dependencies': [
                 '../dbus/dbus.gyp:dbus',
                 '../third_party/protobuf/protobuf.gyp:protobuf_lite',
                 '../third_party/protobuf/protobuf.gyp:protoc#host',
               ],
-              'conditions': [
-                ['system_libcros==0', {
-                  'dependencies': [
-                    '../third_party/cros/cros_api.gyp:cros_api',
-                  ],
-                  'include_dirs': [
-                    '../third_party/'
-                  ],
-                }],
-              ],
             }],
           ],
         }],
         ['OS=="android"', {
           'sources': [
             'browser/extensions/extension_install_ui_android.cc',
             'browser/extensions/extension_install_ui_android.h',
           ],
           'sources!': [
             'browser/extensions/extension_install_ui_default.cc',
             'browser/extensions/extension_install_ui_default.h',
             'browser/extensions/api/usb/usb_api.cc',
             'browser/extensions/api/usb/usb_api.h',
             'browser/extensions/api/usb/usb_device_resource.cc',
             'browser/extensions/api/usb/usb_device_resource.h',
           ],
         }],
       ],
     },
   ],
 }