Enable system NSS key slot.

net/cert/nss_cert_database_chromeos.h

Index: net/cert/nss_cert_database_chromeos.h
diff --git a/net/cert/nss_cert_database_chromeos.h b/net/cert/nss_cert_database_chromeos.h
index b68f742b5183f9e62798a015de1e76452d625302..1c94233b3352e12583b331c938812749f8690663 100644
--- a/net/cert/nss_cert_database_chromeos.h
+++ b/net/cert/nss_cert_database_chromeos.h
@@ -16,16 +16,25 @@ namespace net {
 
 class NET_EXPORT NSSCertDatabaseChromeOS : public NSSCertDatabase {
  public:
+  // |public_slot| is the NSS software slot for the user.
+  // |private_slot| is the TPM slot for the user (if a TPM is present).
   NSSCertDatabaseChromeOS(crypto::ScopedPK11Slot public_slot,
                           crypto::ScopedPK11Slot private_slot);
   virtual ~NSSCertDatabaseChromeOS();
 
+#if defined(OS_CHROMEOS)

[Ryan Sleevi, 2014/07/29 00:23:16]

You're in a ChromeOS file. Isn't this a given?

[pneubeck (no reviews), 2014/07/29 16:00:15]

Done. Thanks for catching.

+  // |system_slot| is the system TPM slot, which is only enabled for certain
+  // users.
+  void SetSystemSlot(crypto::ScopedPK11Slot system_slot);
+#endif
+
   // NSSCertDatabase implementation.
   virtual void ListCertsSync(CertificateList* certs) OVERRIDE;
   virtual void ListCerts(const NSSCertDatabase::ListCertsCallback& callback)
       OVERRIDE;
   virtual void ListModules(CryptoModuleList* modules, bool need_rw) const
       OVERRIDE;
+  virtual crypto::ScopedPK11Slot GetSystemSlot() const OVERRIDE;
 
   // TODO(mattm): handle trust setting, deletion, etc correctly when certs exist
   // in multiple slots.
@@ -40,6 +49,7 @@ class NET_EXPORT NSSCertDatabaseChromeOS : public NSSCertDatabase {
                             CertificateList* certs);
 
   NSSProfileFilterChromeOS profile_filter_;
+  crypto::ScopedPK11Slot system_slot_;
 
   DISALLOW_COPY_AND_ASSIGN(NSSCertDatabaseChromeOS);
 };