Refactor WebCrypto code

content/child/webcrypto/structured_clone.h

+// Copyright 2014 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.
+
+#ifndef CONTENT_CHILD_WEBCRYPTO_STRUCTURED_CLONE_H_
+#define CONTENT_CHILD_WEBCRYPTO_STRUCTURED_CLONE_H_
+
+#include "base/basictypes.h"
+#include "third_party/WebKit/public/platform/WebCrypto.h"
+
+namespace content {
+
+namespace webcrypto {
+
+class CryptoData;
+
+// Called on the target Blink thread.
+bool SerializeKeyForClone(const blink::WebCryptoKey& key,
+                          blink::WebVector<uint8>* key_data);
+
+// Called on the target Blink thread.
+bool DeserializeKeyForClone(const blink::WebCryptoKeyAlgorithm& algorithm,
+                            blink::WebCryptoKeyType type,
+                            bool extractable,
+                            blink::WebCryptoKeyUsageMask usage_mask,
+                            const CryptoData& key_data,
+                            blink::WebCryptoKey* key);
+
+}  // namespace webcrypto
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_WEBCRYPTO_STRUCTURED_CLONE_H_