Reverted because openssl_helper needs to build even on non-openssl builds...

base/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': {
       'base_target': 0,
       'base_extra_target': 0,
     },
@@ skipping 521 matching lines @@
                 'file_version_info.cc',
                 'image_util.cc',
                 'object_watcher.cc',
                 'pe_image.cc',
                 'registry.cc',
                 'resource_util.cc',
                 'win_util.cc',
               ],
           },],
           [ 'use_openssl==1', {
+              # TODO(joth): Use a glob to match exclude patterns once the
+              #             OpenSSL file set is complete.
               'sources!': [
+                'crypto/encryptor_nss.cc',
+                'crypto/rsa_private_key_nss.cc',
+                'crypto/signature_creator_nss.cc',
+                'crypto/signature_verifier_nss.cc',
+                'crypto/symmetric_key_nss.cc',
+                'hmac_nss.cc',
+                'nss_util.cc',
+                'nss_util.h',
                 # Note that sha2.cc depends on the NSS files bundled into
                 # chromium; it does not have the _nss postfix as it is required
                 # on platforms besides linux and *bsd.
                 'sha2.cc',
+                'third_party/nss/blapi.h',
+                'third_party/nss/blapit.h',
+                'third_party/nss/sha256.h',
+                'third_party/nss/sha512.cc',
+              ],
+            }, {
+              'sources!': [
+                'crypto/encryptor_openssl.cc',
+                'crypto/rsa_private_key_openssl.cc',
+                'crypto/signature_creator_openssl.cc',
+                'crypto/signature_verifier_openssl.cc',
+                'crypto/symmetric_key_openssl.cc',
+                'hmac_openssl.cc',
+                'openssl_util.cc',
+                'openssl_util.h',
+                'sha2_openssl.cc',
               ],
           },],
         ],
       }],
     ],
   },
   'targets': [
     {
       'target_name': 'base',
       'type': '<(library)',
@@ skipping 230 matching lines @@
             'third_party/xdg_mime/xdgmimemagic.c',
             'third_party/xdg_mime/xdgmimemagic.h',
             'third_party/xdg_mime/xdgmimeparent.c',
             'third_party/xdg_mime/xdgmimeparent.h',
           ],
         },
       ],
     }],
   ],
 }