Introduce USE_OPENSSL_CERTS for certificate handling.

crypto/crypto.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'crypto.gypi',
@@ skipping 62 matching lines @@
             ],
           },
         }, {  # OS != "mac"
           'sources!': [
             'cssm_init.cc',
             'cssm_init.h',
             'mac_security_services_lock.cc',
             'mac_security_services_lock.h',
           ],
         }],
-        [ 'OS == "mac" or OS == "ios" or OS == "win"', {
+        [ 'use_openssl == 0 and (OS == "mac" or OS == "ios" or OS == "win")', {
           'dependencies': [
             '../third_party/nss/nss.gyp:nspr',
             '../third_party/nss/nss.gyp:nss',
           ],
           'export_dependent_settings': [
             '../third_party/nss/nss.gyp:nspr',
             '../third_party/nss/nss.gyp:nss',
           ],
         }],
         [ 'OS != "win"', {
@@ skipping 99 matching lines @@
           ],
           'dependencies': [
             '../build/linux/system.gyp:ssl',
           ],
         }, {  # os_posix != 1 or OS == "mac" or OS == "android" or OS == "ios"
           'sources!': [
             'rsa_private_key_nss_unittest.cc',
             'openpgp_symmetric_encryption_unittest.cc',
           ]
         }],
-        [ 'OS == "mac" or OS == "ios" or OS == "win"', {
-          'dependencies': [
-            '../third_party/nss/nss.gyp:nss',
-          ],
-        }],
-        [ 'OS == "mac"', {
-          'dependencies': [
-            '../third_party/nss/nss.gyp:nspr',
-          ],
-        }],
         [ 'OS == "win"', {
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [4267, ],
         }],
         [ 'use_openssl==1', {
           'sources!': [
             'nss_util_unittest.cc',
             'openpgp_symmetric_encryption_unittest.cc',
             'rsa_private_key_nss_unittest.cc',
           ],
@@ skipping 27 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }