Add support for crypto::ECPrivateKey::Copy when built with BoringSSL

BUG=457566

Review URL: https://codereview.chromium.org/1133303003

Cr-Commit-Position: refs/heads/master@{#329527}

crypto/ec_private_key.h

@@ -66,10 +66,10 @@ class CRYPTO_EXPORT ECPrivateKey {
       bool sensitive,
       SECKEYPrivateKey** key,
       SECKEYPublicKey** public_key);
+#endif
 
   // Returns a copy of the object.
   ECPrivateKey* Copy() const;
-#endif
 
 #if defined(USE_OPENSSL)
   EVP_PKEY* key() { return key_; }

crypto/ec_private_key_openssl.cc

@@ -85,6 +85,13 @@ ECPrivateKey::~ECPrivateKey() {
     EVP_PKEY_free(key_);
 }
 
+ECPrivateKey* ECPrivateKey::Copy() const {
+  scoped_ptr<ECPrivateKey> copy(new ECPrivateKey);
+  if (key_)
+    copy->key_ = EVP_PKEY_dup(key_);
+  return copy.release();
+}
+
 // static
 bool ECPrivateKey::IsSupported() { return true; }
 

crypto/ec_private_key_unittest.cc

@@ -82,7 +82,6 @@ TEST(ECPrivateKeyUnitTest, InitRandomTest) {
   EXPECT_EQ(raw_pubkey2, raw_pubkey4);
 }
 
-#if !defined(USE_OPENSSL)
 TEST(ECPrivateKeyUnitTest, Copy) {
   scoped_ptr<crypto::ECPrivateKey> keypair1(crypto::ECPrivateKey::Create());
   scoped_ptr<crypto::ECPrivateKey> keypair2(keypair1->Copy());
@@ -113,7 +112,6 @@ TEST(ECPrivateKeyUnitTest, Copy) {
   EXPECT_TRUE(keypair2->ExportRawPublicKey(&raw_pubkey2));
   EXPECT_EQ(raw_pubkey1, raw_pubkey2);
 }
-#endif  // !defined(USE_OPENSSL)
 
 TEST(ECPrivateKeyUnitTest, BadPasswordTest) {
   const std::string password1;