Initial version of Blimp BlobCache.

blimp/common/blob_cache/sha1_util.cc

Index: blimp/common/blob_cache/sha1_util.cc
diff --git a/blimp/common/blob_cache/sha1_util.cc b/blimp/common/blob_cache/sha1_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..14b7009829bbe10cbd9aabb4df7813de21c84944
--- /dev/null
+++ b/blimp/common/blob_cache/sha1_util.cc
@@ -0,0 +1,25 @@
+// 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.
+
+#include "blimp/common/blob_cache/sha1_util.h"
+
+#include "base/sha1.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
+
+namespace blimp {
+
+std::vector<unsigned char> ToSHA1HashBytes(const void* data, size_t data_size) {
+  std::vector<unsigned char> sha1_hash(base::kSHA1Length);
+  base::SHA1HashBytes(static_cast<const unsigned char*>(data), data_size,
+                      sha1_hash.data());
+
+  return sha1_hash;
+}
+
+const std::string FormatSHA1Hash(const void* data) {

[Kevin M, 2016/04/15 17:28:51]

When data becomes a string, DCHECK it for a correct size.

[nyquist, 2016/04/16 00:25:30]

Done.

+  return base::ToLowerASCII(base::HexEncode(data, base::kSHA1Length));
+}
+
+}  // namespace blimp