Make USE_OPENSSL and USE_NSS mutually exclusive

base/crypto/symmetric_key_openssl.cc

Index: base/crypto/symmetric_key_openssl.cc
diff --git a/base/crypto/symmetric_key_openssl.cc b/base/crypto/symmetric_key_openssl.cc
new file mode 100644
index 0000000000000000000000000000000000000000..591252dc225393a1cbc20916a93d51f6a5b2d5af
--- /dev/null
+++ b/base/crypto/symmetric_key_openssl.cc
@@ -0,0 +1,43 @@
+// Copyright (c) 2010 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 "base/crypto/symmetric_key.h"
+
+#include "base/logging.h"
+
+namespace base {
+
+SymmetricKey::~SymmetricKey() {
+}
+
+// static
+SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
+                                              size_t key_size_in_bits) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+// static
+SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
+                                                  const std::string& password,
+                                                  const std::string& salt,
+                                                  size_t iterations,
+                                                  size_t key_size_in_bits) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+// static
+SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
+                                   const std::string& raw_key) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+bool SymmetricKey::GetRawKey(std::string* raw_key) {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+}  // namespace base