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

jingle/glue/pseudotcp_adapter.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 JINGLE_GLUE_PSEUDOTCP_ADAPTER_H_
 #define JINGLE_GLUE_PSEUDOTCP_ADAPTER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 16 matching lines @@
   // Creates an adapter for the supplied Socket.  |socket| should already
   // be ready for use, and ownership of it will be assumed by the adapter.
   PseudoTcpAdapter(net::Socket* socket);
   virtual ~PseudoTcpAdapter();
 
   // net::Socket implementation.
   virtual int Read(net::IOBuffer* buffer, int buffer_size,
                    const net::CompletionCallback& callback) OVERRIDE;
   virtual int Write(net::IOBuffer* buffer, int buffer_size,
                     const net::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;
 
   // net::StreamSocket implementation.
   virtual int Connect(const net::CompletionCallback& callback) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
   virtual bool IsConnected() const OVERRIDE;
   virtual bool IsConnectedAndIdle() const OVERRIDE;
   virtual int GetPeerAddress(net::IPEndPoint* address) const OVERRIDE;
   virtual int GetLocalAddress(net::IPEndPoint* address) const OVERRIDE;
   virtual const net::BoundNetLog& NetLog() const OVERRIDE;
   virtual void SetSubresourceSpeculation() OVERRIDE;
@@ skipping 34 matching lines @@
   scoped_refptr<Core> core_;
 
   net::BoundNetLog net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(PseudoTcpAdapter);
 };
 
 }  // namespace jingle_glue
 
 #endif  // JINGLE_GLUE_STREAM_SOCKET_ADAPTER_H_