This applies GUIDs to certificate and key nicknames when

net/third_party/mozilla_security_manager/nsNSSCertificateDB.cpp

Index: net/third_party/mozilla_security_manager/nsNSSCertificateDB.cpp
diff --git a/net/third_party/mozilla_security_manager/nsNSSCertificateDB.cpp b/net/third_party/mozilla_security_manager/nsNSSCertificateDB.cpp
index 3e50cd1f41704b44f2e346f30ad29e7881af3d1e..d8789c8e07481274d8aa71e9947fdb1e97376db2 100644
--- a/net/third_party/mozilla_security_manager/nsNSSCertificateDB.cpp
+++ b/net/third_party/mozilla_security_manager/nsNSSCertificateDB.cpp
@@ -80,14 +80,10 @@ bool ImportCACerts(const net::CertificateList& certificates,
     // Mozilla uses CERT_AddTempCertToPerm, however it is privately exported,
     // and it doesn't take the slot as an argument either.  Instead, we use
     // PK11_ImportCert and CERT_ChangeCertTrust.
-    char* nickname = CERT_MakeCANickname(root->os_cert_handle());
-    if (!nickname)
-      return false;
     SECStatus srv = PK11_ImportCert(slot.get(), root->os_cert_handle(),
                                     CK_INVALID_HANDLE,
-                                    nickname,
+                                    root->GetLabel().c_str(),
                                     PR_FALSE /* includeTrust (unused) */);
-    PORT_Free(nickname);
     if (srv != SECSuccess) {
       LOG(ERROR) << "PK11_ImportCert failed with error " << PORT_GetError();
       return false;
@@ -139,14 +135,10 @@ bool ImportCACerts(const net::CertificateList& certificates,
 
     // Mozilla uses CERT_ImportCerts, which doesn't take a slot arg.  We use
     // PK11_ImportCert instead.
-    char* nickname = CERT_MakeCANickname(cert->os_cert_handle());
-    if (!nickname)
-      return false;
     SECStatus srv = PK11_ImportCert(slot.get(), cert->os_cert_handle(),
                                     CK_INVALID_HANDLE,
-                                    nickname,
+                                    cert->GetLabel().c_str(),
                                     PR_FALSE /* includeTrust (unused) */);
-    PORT_Free(nickname);
     if (srv != SECSuccess) {
       LOG(ERROR) << "PK11_ImportCert failed with error " << PORT_GetError();
       // TODO(mattm): Should we bail or continue on error here?  Mozilla doesn't
@@ -176,7 +168,7 @@ bool ImportServerCert(const net::CertificateList& certificates,
     // PK11_ImportCert instead.
     SECStatus srv = PK11_ImportCert(slot.get(), cert->os_cert_handle(),
                                     CK_INVALID_HANDLE,
-                                    cert->subject().GetDisplayName().c_str(),
+                                    cert->GetLabel().c_str(),
                                     PR_FALSE /* includeTrust (unused) */);
     if (srv != SECSuccess) {
       LOG(ERROR) << "PK11_ImportCert failed with error " << PORT_GetError();