Support building BoringSSL with NSS certificates.

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
index 98360e810d7dd9678ec94c34a24ad0231e90af9e..dad66887f819c44fb5ec06ecf95c9dbbbd8d657e 100644
--- a/crypto/rsa_private_key_nss_unittest.cc
+++ b/crypto/rsa_private_key_nss_unittest.cc
@@ -13,6 +13,10 @@
 
 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() {}
@@ -57,4 +61,6 @@ TEST_F(RSAPrivateKeyNSSTest, FailedFindFromPublicKey) {
   EXPECT_EQ(NULL, crypto::RSAPrivateKey::FindFromPublicKeyInfo(public_key));
 }
 
+#endif  // USE_NSS_CERTS
+
 }  // namespace crypto