Initial version of Blimp BlobCache.

blimp/common/blob_cache/id_util.h

+// Copyright 2016 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 BLIMP_COMMON_BLOB_CACHE_ID_UTIL_H_
+#define BLIMP_COMMON_BLOB_CACHE_ID_UTIL_H_
+
+#include <string>
+#include <vector>
+
+#include "blimp/common/blimp_common_export.h"
+#include "blimp/common/blob_cache/blob_cache.h"
+
+namespace blimp {
+
+// Returns the bytes of a SHA1 hash of the input. The string is guaranteed
+// to have length base::kSHA1Length.
+BLIMP_COMMON_EXPORT const BlobId CalculateBlobId(const void* data,
+                                                 size_t data_size);
+
+// Returns a hexadecimal string representation of a SHA1 hash. The input is
+// required to have length base::kSHA1Length.
+BLIMP_COMMON_EXPORT const std::string FormatBlobId(const BlobId& data);
+
+}  // namespace blimp
+
+#endif  // BLIMP_COMMON_BLOB_CACHE_ID_UTIL_H_