Make it so net/ can be built without file:// support.

net/net.gyp

 # Copyright 2013 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': {
     'chromium_code': 1,
 
     'linux_link_kerberos%': 0,
     'use_tracing_cache_backend%': 0,
@@ skipping 110 matching lines @@
             ],
           },
           'sources!': [
             'disk_cache/blockfile/mapped_file_posix.cc',
           ],
         }, { # else
           'sources!': [
             'disk_cache/blockfile/mapped_file_avoid_mmap_posix.cc',
           ],
         }],
+        ['disable_file_support==1', {
+          # TODO(mmenke):  Should probably get rid of the dependency on
+          # net_resources in this case (It's used in net_util, to format
+          # directory listings.  Also used outside of net/).
+          'dependencies!': [
+            'net_resources',
+          ],
+          'sources!': [
+            'base/directory_lister.cc',
+            'base/directory_lister.h',
+            'url_request/url_request_file_dir_job.cc',
+            'url_request/url_request_file_dir_job.h',
+            'url_request/url_request_file_job.cc',
+            'url_request/url_request_file_job.h',
+            'url_request/file_protocol_handler.cc',
+            'url_request/file_protocol_handler.h',
+          ],
+        }],
         ['disable_ftp_support==1', {
           'sources/': [
             ['exclude', '^ftp/'],
           ],
           'sources!': [
             'url_request/ftp_protocol_handler.cc',
             'url_request/ftp_protocol_handler.h',
             'url_request/url_request_ftp_job.cc',
             'url_request/url_request_ftp_job.h',
           ],
@@ skipping 447 matching lines @@
               'ssl/openssl_client_key_store_unittest.cc',
             ],
         }],
         [ 'enable_websockets != 1', {
             'sources/': [
               ['exclude', '^socket_stream/'],
               ['exclude', '^websockets/'],
               ['exclude', '^spdy/spdy_websocket_stream_unittest\\.cc$'],
             ],
         }],
+        ['disable_file_support==1', {
+          'sources!': [
+            'base/directory_lister_unittest.cc',
+            'url_request/url_request_file_job_unittest.cc',
+          ],
+        }],
         [ 'disable_ftp_support==1', {
             'sources/': [
               ['exclude', '^ftp/'],
             ],
             'sources!': [
               'url_request/url_request_ftp_job_unittest.cc',
             ],
           },
         ],
         [ 'enable_built_in_dns!=1', {
@@ skipping 925 matching lines @@
             'net_unittests.isolate',
           ],
           'sources': [
             'net_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }