QUIC: support diversified keys with version 33.

net/quic/crypto/aead_base_decrypter.h

Index: net/quic/crypto/aead_base_decrypter.h
diff --git a/net/quic/crypto/aead_base_decrypter.h b/net/quic/crypto/aead_base_decrypter.h
index 715961a591ee4454fa3dd60462b52a42a653c3fa..ca5fa9c317a994a4daf0480fc46bcdd4ca32c2e5 100644
--- a/net/quic/crypto/aead_base_decrypter.h
+++ b/net/quic/crypto/aead_base_decrypter.h
@@ -26,6 +26,8 @@ class NET_EXPORT_PRIVATE AeadBaseDecrypter : public QuicDecrypter {
   // QuicDecrypter implementation
   bool SetKey(base::StringPiece key) override;
   bool SetNoncePrefix(base::StringPiece nonce_prefix) override;
+  bool SetPreliminaryKey(base::StringPiece key) override;
+  bool SetDiversificationNonce(DiversificationNonce nonce) override;
   bool DecryptPacket(QuicPathId path_id,
                      QuicPacketNumber packet_number,
                      base::StringPiece associated_data,
@@ -48,6 +50,7 @@ class NET_EXPORT_PRIVATE AeadBaseDecrypter : public QuicDecrypter {
   const size_t key_size_;
   const size_t auth_tag_size_;
   const size_t nonce_prefix_size_;
+  bool have_preliminary_key_;
 
   // The key.
   unsigned char key_[kMaxKeySize];