Removing NSS files and USE_OPENSSL flag

crypto/hmac_nss.cc

Index: crypto/hmac_nss.cc
diff --git a/crypto/hmac_nss.cc b/crypto/hmac_nss.cc
deleted file mode 100644
index 25478609e81d929bf93ef6c8af00f777de7647b0..0000000000000000000000000000000000000000
--- a/crypto/hmac_nss.cc
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "crypto/hmac.h"
-
-#include <nss.h>
-#include <pk11pub.h>
-#include <stddef.h>
-
-#include <memory>
-
-#include "base/logging.h"
-#include "crypto/nss_util.h"
-#include "crypto/scoped_nss_types.h"
-
-namespace crypto {
-
-struct HMACPlatformData {
-  CK_MECHANISM_TYPE mechanism_;
-  ScopedPK11Slot slot_;
-  ScopedPK11SymKey sym_key_;
-};
-
-HMAC::HMAC(HashAlgorithm hash_alg)
-    : hash_alg_(hash_alg), plat_(new HMACPlatformData()) {
-  // Only SHA-1 and SHA-256 hash algorithms are supported.
-  switch (hash_alg_) {
-    case SHA1:
-      plat_->mechanism_ = CKM_SHA_1_HMAC;
-      break;
-    case SHA256:
-      plat_->mechanism_ = CKM_SHA256_HMAC;
-      break;
-    default:
-      NOTREACHED() << "Unsupported hash algorithm";
-      break;
-  }
-}
-
-HMAC::~HMAC() {
-}
-
-bool HMAC::Init(const unsigned char *key, size_t key_length) {
-  EnsureNSSInit();
-
-  if (plat_->slot_.get()) {
-    // Init must not be called more than twice on the same HMAC object.
-    NOTREACHED();
-    return false;
-  }
-
-  plat_->slot_.reset(PK11_GetInternalSlot());
-  if (!plat_->slot_.get()) {
-    NOTREACHED();
-    return false;
-  }
-
-  SECItem key_item;
-  key_item.type = siBuffer;
-  key_item.data = const_cast<unsigned char*>(key);  // NSS API isn't const.
-  key_item.len = key_length;
-
-  plat_->sym_key_.reset(PK11_ImportSymKey(plat_->slot_.get(),
-                                          plat_->mechanism_,
-                                          PK11_OriginUnwrap,
-                                          CKA_SIGN,
-                                          &key_item,
-                                          NULL));
-  if (!plat_->sym_key_.get()) {
-    NOTREACHED();
-    return false;
-  }
-
-  return true;
-}
-
-bool HMAC::Sign(const base::StringPiece& data,
-                unsigned char* digest,
-                size_t digest_length) const {
-  if (!plat_->sym_key_.get()) {
-    // Init has not been called before Sign.
-    NOTREACHED();
-    return false;
-  }
-
-  SECItem param = { siBuffer, NULL, 0 };
-  ScopedPK11Context context(PK11_CreateContextBySymKey(plat_->mechanism_,
-                                                       CKA_SIGN,
-                                                       plat_->sym_key_.get(),
-                                                       &param));
-  if (!context.get()) {
-    NOTREACHED();
-    return false;
-  }
-
-  if (PK11_DigestBegin(context.get()) != SECSuccess) {
-    NOTREACHED();
-    return false;
-  }
-
-  if (PK11_DigestOp(context.get(),
-                    reinterpret_cast<const unsigned char*>(data.data()),
-                    data.length()) != SECSuccess) {
-    NOTREACHED();
-    return false;
-  }
-
-  unsigned int len = 0;
-  if (PK11_DigestFinal(context.get(),
-                       digest, &len, digest_length) != SECSuccess) {
-    NOTREACHED();
-    return false;
-  }
-
-  return true;
-}
-
-}  // namespace crypto