[webcrypto] Minor cleanup/consolidation of JWK source.

content/child/webcrypto/jwk.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_JWK_H_
+#define CONTENT_CHILD_WEBCRYPTO_JWK_H_
+
+#include "third_party/WebKit/public/platform/WebArrayBuffer.h"
+#include "third_party/WebKit/public/platform/WebCrypto.h"
+#include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
+
+namespace content {
+
+namespace webcrypto {
+
+class CryptoData;
+class Status;
+
+Status ImportKeyJwk(const CryptoData& key_data,
+                    const blink::WebCryptoAlgorithm& algorithm,
+                    bool extractable,
+                    blink::WebCryptoKeyUsageMask usage_mask,
+                    blink::WebCryptoKey* key);
+
+Status ExportKeyJwk(const blink::WebCryptoKey& key,
+                    blink::WebArrayBuffer* buffer);
+
+}  // namespace webcrypto
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_WEBCRYPTO_JWK_H_