[NaCl SDK] Expose Google Drive to nacl_io.

native_client_sdk/src/libraries/nacl_io/hash.h

Index: native_client_sdk/src/libraries/nacl_io/hash.h
diff --git a/native_client_sdk/src/libraries/nacl_io/hash.h b/native_client_sdk/src/libraries/nacl_io/hash.h
new file mode 100644
index 0000000000000000000000000000000000000000..b2589c08f93258ac0cacfa125ea5177c8ca550be
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+++ b/native_client_sdk/src/libraries/nacl_io/hash.h
@@ -0,0 +1,18 @@
+// Copyright (c) 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 LIBRARIES_NACL_IO_HASH_H_
+#define LIBRARIES_NACL_IO_HASH_H_
+
+#include "nacl_io/osdirent.h"
+#include "nacl_io/path.h"
+
+namespace nacl_io {
+
+ino_t HashPathSegment(ino_t hash, const char* str, size_t len);
+ino_t HashPath(const Path& path);
+
+}  // namespace nacl_io
+
+#endif  // LIBRARIES_NACL_IO_HASH_H_