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

net/socket/ssl_server_socket_nss.h

Index: net/socket/ssl_server_socket_nss.h
diff --git a/net/socket/ssl_server_socket_nss.h b/net/socket/ssl_server_socket_nss.h
index 8bbb0e338aceaa916d71541bfc47f4183d54a4f7..a0545777f2ea04f0578ae5303aba46f560289576 100644
--- a/net/socket/ssl_server_socket_nss.h
+++ b/net/socket/ssl_server_socket_nss.h
@@ -46,8 +46,8 @@ class SSLServerSocketNSS : public SSLServerSocket {
                    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;