Support for the new WebCrypto digest by chunks API.

content/child/webcrypto/shared_crypto.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_SHARED_CRYPTO_H_
 #define CONTENT_CHILD_WEBCRYPTO_SHARED_CRYPTO_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.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;
@@ skipping 60 matching lines @@
 
 CONTENT_EXPORT Status Decrypt(const blink::WebCryptoAlgorithm& algorithm,
                               const blink::WebCryptoKey& key,
                               const CryptoData& data,
                               blink::WebArrayBuffer* buffer);
 
 CONTENT_EXPORT Status Digest(const blink::WebCryptoAlgorithm& algorithm,
                              const CryptoData& data,
                              blink::WebArrayBuffer* buffer);
 
+CONTENT_EXPORT scoped_ptr<blink::WebCryptoDigestor> CreateDigestor(
+    blink::WebCryptoAlgorithmId algorithm);
+
 CONTENT_EXPORT Status
     GenerateSecretKey(const blink::WebCryptoAlgorithm& algorithm,
                       bool extractable,
                       blink::WebCryptoKeyUsageMask usage_mask,
                       blink::WebCryptoKey* key);
 
 CONTENT_EXPORT Status
     GenerateKeyPair(const blink::WebCryptoAlgorithm& algorithm,
                     bool extractable,
                     blink::WebCryptoKeyUsageMask usage_mask,
@@ skipping 59 matching lines @@
                            bool extractable,
                            blink::WebCryptoKeyUsageMask usage_mask,
                            const CryptoData& key_data,
                            blink::WebCryptoKey* key);
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_SHARED_CRYPTO_H_