Separate GetMacSecurityServicesLock from cssm_init.h so that we can use...

base/base.gypi

Index: base/base.gypi
===================================================================
--- base/base.gypi	(revision 77551)
+++ base/base.gypi	(working copy)
@@ -506,6 +506,8 @@
           'sources!': [
             'crypto/cssm_init.cc',
             'crypto/cssm_init.h',
+            'crypto/mac_security_services_lock.cc',
+            'crypto/mac_security_services_lock.h',

[TVL, 2011/03/10 02:06:07]

fyi - if this was security_services_lock_mac.cc the filter in build/common.gypi
would auto exclude it on other platforms.  also, having a crypto/mac directory
would work (the filter looks for a folder named mac or for a suffix).

           ],
         }],
         [ 'OS == "mac" or OS == "win"', {
@@ -577,6 +579,8 @@
         'crypto/encryptor_nss.cc',
         'crypto/encryptor_openssl.cc',
         'crypto/encryptor_win.cc',
+        'crypto/mac_security_services_lock.cc',
+        'crypto/mac_security_services_lock.h',
         'crypto/rsa_private_key.h',
         'crypto/rsa_private_key.cc',
         'crypto/rsa_private_key_mac.cc',