| Index: net/socket/ssl_client_socket_nss.cc
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| diff --git a/net/socket/ssl_client_socket_nss.cc b/net/socket/ssl_client_socket_nss.cc
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| index cf216880ac40aea936115d8d159df2ed8b754bf2..3b5cc215bd32487d70a47c025200bc6c9dcece33 100644
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| --- a/net/socket/ssl_client_socket_nss.cc
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| +++ b/net/socket/ssl_client_socket_nss.cc
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| @@ -2935,6 +2935,9 @@ SSLClientSocketNSS::GetNextProto(std::string* proto,
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|  int SSLClientSocketNSS::Connect(const CompletionCallback& callback) {
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|    EnterFunction("");
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|    DCHECK(transport_.get());
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| +  // It is an error to create an SSLClientSocket whose context has no
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| +  // TransportSecurityState.
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| +  DCHECK(transport_security_state_);
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|    DCHECK_EQ(STATE_NONE, next_handshake_state_);
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|    DCHECK(user_connect_callback_.is_null());
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|    DCHECK(!callback.is_null());
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| 
 |