Land Recent QUIC changes

net/quic/crypto/common_cert_set.h

Index: net/quic/crypto/common_cert_set.h
diff --git a/net/quic/crypto/common_cert_set.h b/net/quic/crypto/common_cert_set.h
new file mode 100644
index 0000000000000000000000000000000000000000..d4cabd6a9c7ed00156b9fc273d72d50de42a508d
--- /dev/null
+++ b/net/quic/crypto/common_cert_set.h
@@ -0,0 +1,62 @@
+// Copyright (c) 2013 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 NET_QUIC_CRYPTO_COMMON_CERT_SET_H_
+#define NET_QUIC_CRYPTO_COMMON_CERT_SET_H_
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/strings/string_piece.h"
+#include "net/base/net_export.h"
+#include "net/quic/crypto/crypto_protocol.h"
+
+namespace net {
+
+// CommonCertSet is an interface to an object that contains a number of common
+// certificate sets and can match against them.
+class NET_EXPORT_PRIVATE CommonCertSet {
+ public:
+  virtual ~CommonCertSet();
+
+  // GetCommonHashes returns a StringPiece containing the hashes of common sets
+  // supported by this object.
+  virtual base::StringPiece GetCommonHashes() = 0;
+
+  // GetCert returns a specific certificate in the common set identified by
+  // |hash|. If no such certificate is known, an empty StringPiece is returned.
+  virtual base::StringPiece GetCert(uint64 hash, uint32 index) = 0;
+
+  // MatchCert tries to find |cert| in one of the common certificate sets
+  // identified by |common_set_hashes|. On success it puts the hash in
+  // |out_hash|, the index in the set in |out_index| and returns true. Otherwise
+  // it returns false.
+  virtual bool MatchCert(base::StringPiece cert,
+                         base::StringPiece common_set_hashes,
+                         uint64* out_hash,
+                         uint32* out_index) = 0;
+};
+
+// CommonCertSetQUIC implements the CommonCertSet interface using the default
+// certificate sets.
+class NET_EXPORT_PRIVATE CommonCertSetQUIC : public CommonCertSet {
+ public:
+  CommonCertSetQUIC();
+
+  // CommonCertSet interface.
+  virtual base::StringPiece GetCommonHashes() OVERRIDE;
+
+  virtual base::StringPiece GetCert(uint64 hash, uint32 index) OVERRIDE;
+
+  virtual bool MatchCert(base::StringPiece cert,
+                         base::StringPiece common_set_hashes,
+                         uint64* out_hash,
+                         uint32* out_index) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CommonCertSetQUIC);
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_CRYPTO_COMMON_CERT_SET_H_