Replace c/b/nss_context by a KeyedService.

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 348 matching lines @@
               'third_party/mozilla_security_manager/nsPKCS12Blob.h',
             ],
           },
         ],
         [ 'use_nss != 1', {
             'sources!': [
               'cert/cert_verify_proc_nss.cc',
               'cert/cert_verify_proc_nss.h',
               'ssl/client_cert_store_nss.cc',
               'ssl/client_cert_store_nss.h',
-              'ssl/client_cert_store_chromeos.cc',
-              'ssl/client_cert_store_chromeos.h',
             ],
         }],
         [ 'enable_websockets != 1', {
             'sources/': [
               ['exclude', '^socket_stream/'],
               ['exclude', '^websockets/'],
             ],
             'sources!': [
               'spdy/spdy_websocket_stream.cc',
               'spdy/spdy_websocket_stream.h',
@@ skipping 200 matching lines @@
             'dns/dns_config_service_posix_unittest.cc',
           ],
           'dependencies': [
             'net_javatests',
             'net_test_jni_headers',
           ],
         }],
         [ 'use_nss != 1', {
           'sources!': [
             'ssl/client_cert_store_nss_unittest.cc',
-            'ssl/client_cert_store_chromeos_unittest.cc',
           ],
         }],
         [ 'use_openssl == 1', {
           # Avoid compiling/linking with the system library.
           'dependencies': [
             '../third_party/boringssl/boringssl.gyp:boringssl',
           ],
         }, {  # use_openssl == 0
           'conditions': [
             [ 'desktop_linux == 1 or chromeos == 1', {
@@ skipping 1123 matching lines @@
             'net_unittests.isolate',
           ],
           'sources': [
             'net_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }