Revert of Don't use RSAPrivateKey in NSS integration code.

crypto/rsa_private_key_nss_unittest.cc

Index: crypto/rsa_private_key_nss_unittest.cc
diff --git a/crypto/rsa_private_key_nss_unittest.cc b/crypto/rsa_private_key_nss_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dad66887f819c44fb5ec06ecf95c9dbbbd8d657e
--- /dev/null
+++ b/crypto/rsa_private_key_nss_unittest.cc
@@ -0,0 +1,66 @@
+// 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/rsa_private_key.h"
+
+#include <keyhi.h>
+#include <pk11pub.h>
+
+#include "base/memory/scoped_ptr.h"
+#include "crypto/scoped_test_nss_db.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace crypto {
+
+// TODO(davidben): These tests assume NSS is used for both the internal crypto
+// library and the platform key store. See https://crbug.com/478777.
+#if defined(USE_NSS_CERTS)
+
+class RSAPrivateKeyNSSTest : public testing::Test {
+ public:
+  RSAPrivateKeyNSSTest() {}
+  ~RSAPrivateKeyNSSTest() override {}
+
+ private:
+  ScopedTestNSSDB test_nssdb_;
+
+  DISALLOW_COPY_AND_ASSIGN(RSAPrivateKeyNSSTest);
+};
+
+TEST_F(RSAPrivateKeyNSSTest, FindFromPublicKey) {
+  // Create a keypair, which will put the keys in the user's NSSDB.
+  scoped_ptr<crypto::RSAPrivateKey> key_pair(RSAPrivateKey::Create(256));
+
+  std::vector<uint8> public_key;
+  ASSERT_TRUE(key_pair->ExportPublicKey(&public_key));
+
+  scoped_ptr<crypto::RSAPrivateKey> key_pair_2(
+      crypto::RSAPrivateKey::FindFromPublicKeyInfo(public_key));
+
+  EXPECT_EQ(key_pair->key_->pkcs11ID, key_pair_2->key_->pkcs11ID);
+}
+
+TEST_F(RSAPrivateKeyNSSTest, FailedFindFromPublicKey) {
+  // Create a keypair, which will put the keys in the user's NSSDB.
+  scoped_ptr<crypto::RSAPrivateKey> key_pair(RSAPrivateKey::Create(256));
+
+  std::vector<uint8> public_key;
+  ASSERT_TRUE(key_pair->ExportPublicKey(&public_key));
+
+  // Remove the keys from the DB, and make sure we can't find them again.
+  if (key_pair->key_) {
+    PK11_DestroyTokenObject(key_pair->key_->pkcs11Slot,
+                            key_pair->key_->pkcs11ID);
+  }
+  if (key_pair->public_key_) {
+    PK11_DestroyTokenObject(key_pair->public_key_->pkcs11Slot,
+                            key_pair->public_key_->pkcs11ID);
+  }
+
+  EXPECT_EQ(NULL, crypto::RSAPrivateKey::FindFromPublicKeyInfo(public_key));
+}
+
+#endif  // USE_NSS_CERTS
+
+}  // namespace crypto