file_manager: Remove file_manager_extension=0 section from chrome_browser_chromeos.gypi

chrome/chrome_browser_chromeos.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_chromeos',
       'type': 'static_library',
@@ skipping 882 matching lines @@
           'sources!': [
             'browser/chromeos/device_uma.cc',
             'browser/chromeos/device_uma.h',
           ],
         }],
         ['use_cras==1', {
           'defines': [
             'USE_CRAS',
           ],          
         }],
-        ['file_manager_extension==0', {
-          'sources/': [
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_browser_handler_api.cc'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_browser_handler_api.h'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_browser_private_api.cc'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_browser_private_api.h'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_browser_private_api_factory.cc'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_browser_private_api_factory.h'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_tasks.cc'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/file_tasks.h'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/open_util.cc'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/open_util.h'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/zip_file_creator.cc'],
-            ['exclude', 'browser/chromeos/extensions/file_manager/zip_file_creator.h'],
-            ['exclude', 'browser/chromeos/extensions/media_player_api.cc'],
-            ['exclude', 'browser/chromeos/extensions/media_player_api.h'],
-          ],
-        }],
         ['use_ash==1', {
           'dependencies': [
             '../ash/ash.gyp:ash',
             '../ash/ash.gyp:ash_resources',
             '../ash/ash_strings.gyp:ash_strings',
             '../ui/app_list/app_list.gyp:app_list',
             '../ui/message_center/message_center.gyp:message_center',
           ],
         }],
         ['use_aura==1', {
@@ skipping 58 matching lines @@
         'browser/chromeos/attestation/attestation_key_payload.proto',
       ],
       'variables': {
         'proto_in_dir': 'browser/chromeos/attestation',
         'proto_out_dir': 'chrome/browser/chromeos/attestation',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }