Removing crypto/third_party/nss/ and removing crypto _win files

crypto/symmetric_key.cc

Index: crypto/symmetric_key.cc
diff --git a/crypto/symmetric_key_openssl.cc b/crypto/symmetric_key.cc
similarity index 97%
rename from crypto/symmetric_key_openssl.cc
rename to crypto/symmetric_key.cc
index 5aef1d4ffc11f2da50fa1a89e68141643bd18fbf..4da8bd8662f85490a9148c62fb7879044ffdbc05 100644
--- a/crypto/symmetric_key_openssl.cc
+++ b/crypto/symmetric_key.cc
@@ -76,8 +76,9 @@ SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
       base::WriteInto(&key->key_, key_size_in_bytes + 1));
   int rv = PKCS5_PBKDF2_HMAC_SHA1(
       password.data(), password.length(),
-      reinterpret_cast<const uint8_t*>(salt.data()), salt.length(), iterations,
-      static_cast<int>(key_size_in_bytes), key_data);
+      reinterpret_cast<const uint8_t*>(salt.data()), salt.length(),
+      static_cast<unsigned>(iterations),
+      key_size_in_bytes, key_data);
   return rv == 1 ? key.release() : NULL;
 }