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

jingle/glue/proxy_resolving_client_socket.cc

 // 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.
 
 #include "jingle/glue/proxy_resolving_client_socket.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
@@ skipping 89 matching lines @@
 int ProxyResolvingClientSocket::Write(
     net::IOBuffer* buf,
     int buf_len,
     const net::CompletionCallback& callback) {
   if (transport_.get() && transport_->socket())
     return transport_->socket()->Write(buf, buf_len, callback);
   NOTREACHED();
   return net::ERR_SOCKET_NOT_CONNECTED;
 }
 
-bool ProxyResolvingClientSocket::SetReceiveBufferSize(int32 size) {
+int ProxyResolvingClientSocket::SetReceiveBufferSize(int32 size) {
   if (transport_.get() && transport_->socket())
     return transport_->socket()->SetReceiveBufferSize(size);
   NOTREACHED();
-  return false;
+  return net::ERR_SOCKET_NOT_CONNECTED;
 }
 
-bool ProxyResolvingClientSocket::SetSendBufferSize(int32 size) {
+int ProxyResolvingClientSocket::SetSendBufferSize(int32 size) {
   if (transport_.get() && transport_->socket())
     return transport_->socket()->SetSendBufferSize(size);
   NOTREACHED();
-  return false;
+  return net::ERR_SOCKET_NOT_CONNECTED;
 }
 
 int ProxyResolvingClientSocket::Connect(
     const net::CompletionCallback& callback) {
   DCHECK(user_connect_callback_.is_null());
 
   tried_direct_connect_fallback_ = false;
 
   // First we try and resolve the proxy.
   int status = network_session_->proxy_service()->ResolveProxy(
@@ skipping 257 matching lines @@
   return false;
 }
 
 void ProxyResolvingClientSocket::CloseTransportSocket() {
   if (transport_.get() && transport_->socket())
     transport_->socket()->Disconnect();
   transport_.reset();
 }
 
 }  // namespace jingle_glue