make SetReceiveBufferSize and SetSendBufferSize return net error codes (instead of bools)

net/socket/ssl_server_socket_nss.h

 // Copyright (c) 2012 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_SOCKET_SSL_SERVER_SOCKET_NSS_H_
 #define NET_SOCKET_SSL_SERVER_SOCKET_NSS_H_
 
 #include <certt.h>
 #include <keyt.h>
 #include <nspr.h>
@@ skipping 28 matching lines @@
                                    const base::StringPiece& context,
                                    unsigned char* out,
                                    unsigned int outlen) OVERRIDE;
   virtual int GetTLSUniqueChannelBinding(std::string* out) OVERRIDE;
 
   // Socket interface (via StreamSocket).
   virtual int Read(IOBuffer* buf, int buf_len,
                    const CompletionCallback& callback) OVERRIDE;
   virtual int Write(IOBuffer* buf, int buf_len,
                     const CompletionCallback& callback) OVERRIDE;
-  virtual bool SetReceiveBufferSize(int32 size) OVERRIDE;
-  virtual bool SetSendBufferSize(int32 size) OVERRIDE;
+  virtual int SetReceiveBufferSize(int32 size) OVERRIDE;
+  virtual int SetSendBufferSize(int32 size) OVERRIDE;
 
   // StreamSocket implementation.
   virtual int Connect(const CompletionCallback& callback) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
   virtual bool IsConnected() const OVERRIDE;
   virtual bool IsConnectedAndIdle() const OVERRIDE;
   virtual int GetPeerAddress(IPEndPoint* address) const OVERRIDE;
   virtual int GetLocalAddress(IPEndPoint* address) const OVERRIDE;
   virtual const BoundNetLog& NetLog() const OVERRIDE;
   virtual void SetSubresourceSpeculation() OVERRIDE;
@@ skipping 80 matching lines @@
 
   State next_handshake_state_;
   bool completed_handshake_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLServerSocketNSS);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_SERVER_SOCKET_NSS_H_