crypto/nss_util: Get TPM slot id, do lookup by id instead of by name.

crypto/ec_private_key_nss.cc

Index: crypto/ec_private_key_nss.cc
diff --git a/crypto/ec_private_key_nss.cc b/crypto/ec_private_key_nss.cc
index 9bb9df124e497ca4a3c6077bbc88575bd6f16729..bbce0f8b61128343523321474191c4ea01f0cb1f 100644
--- a/crypto/ec_private_key_nss.cc
+++ b/crypto/ec_private_key_nss.cc
@@ -36,6 +36,7 @@ class EllipticCurveSupportChecker {
     // slot.  If we support other slots in the future, checking whether they
     // support ECDSA may block NSS, and the value may also change as devices are
     // inserted/removed, so we would need to re-check on every use.
+  LOG(ERROR) << "HIIIIIIIIIIIIIIIIIIIIIIIIIII";
     crypto::EnsureNSSInit();
     crypto::ScopedPK11Slot slot(GetKeySlot());
     supported_ = PK11_DoesMechanism(slot.get(), CKM_EC_KEY_PAIR_GEN) &&
@@ -328,6 +329,7 @@ ECPrivateKey* ECPrivateKey::CreateFromEncryptedPrivateKeyInfoWithParams(
     const std::vector<uint8>& subject_public_key_info,
     bool permanent,
     bool sensitive) {
+  LOG(ERROR) << "HIIIIIIIIIIIIIIIIIIIIIIIIIII";
   EnsureNSSInit();
 
   scoped_ptr<ECPrivateKey> result(new ECPrivateKey);