Fix SpdySession::WriteCredentialFrame ECPrivateKey creation args.

crypto/ec_signature_creator.cc

+// Copyright (c) 2012 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/ec_signature_creator.h"
+
+#include "crypto/ec_signature_creator_impl.h"
+
+namespace crypto {
+
+namespace {
+
+ECSignatureCreatorFactory* g_factory_ = NULL;
+
+}  // namespace
+
+// static
+ECSignatureCreator* ECSignatureCreator::Create(ECPrivateKey* key) {
+  if (g_factory_)
+    return g_factory_->Create(key);
+  return new ECSignatureCreatorImpl(key);
+}
+
+// static
+void ECSignatureCreator::SetFactoryForTesting(
+    ECSignatureCreatorFactory* factory) {
+  g_factory_ = factory;
+}
+
+}  // namespace crypto