Support building BoringSSL with NSS certificates.

net/cert/ev_root_ca_metadata_unittest.cc

Index: net/cert/ev_root_ca_metadata_unittest.cc
diff --git a/net/cert/ev_root_ca_metadata_unittest.cc b/net/cert/ev_root_ca_metadata_unittest.cc
index e26603c13ce64f59aaa84461c5270b6cfbaa76a0..694d99bd4a8dbac73469c3d0a871bed323f7f833 100644
--- a/net/cert/ev_root_ca_metadata_unittest.cc
+++ b/net/cert/ev_root_ca_metadata_unittest.cc
@@ -9,6 +9,7 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(USE_NSS)
+#include "crypto/nss_util.h"
 #include "crypto/scoped_nss_types.h"
 #endif
 
@@ -63,6 +64,7 @@ EVOidData::EVOidData()
 }
 
 bool EVOidData::Init() {
+  crypto::EnsureNSSInit();
   crypto::ScopedPLArenaPool pool(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
   if (!pool.get())
     return false;