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

net/socket/ssl_client_socket_openssl.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_CLIENT_SOCKET_OPENSSL_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 71 matching lines @@
   virtual void SetOmniboxSpeculation() OVERRIDE;
   virtual bool WasEverUsed() const OVERRIDE;
   virtual bool UsingTCPFastOpen() const OVERRIDE;
   virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE;
 
   // Socket implementation.
   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;
 
  protected:
   // SSLClientSocket implementation.
   virtual scoped_refptr<X509Certificate> GetUnverifiedServerCertificateChain()
       const OVERRIDE;
 
  private:
   class PeerCertificateChain;
   class SSLContext;
   friend class SSLClientSocket;
@@ skipping 133 matching lines @@
   // True if channel ID extension was negotiated.
   bool channel_id_xtn_negotiated_;
   // The request handle for |server_bound_cert_service_|.
   ServerBoundCertService::RequestHandle channel_id_request_handle_;
   BoundNetLog net_log_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_