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

net/http/http_proxy_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 "net/http/http_proxy_client_socket.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 219 matching lines @@
 }
 
 int HttpProxyClientSocket::Write(IOBuffer* buf, int buf_len,
                                  const CompletionCallback& callback) {
   DCHECK_EQ(STATE_DONE, next_state_);
   DCHECK(user_callback_.is_null());
 
   return transport_->socket()->Write(buf, buf_len, callback);
 }
 
-bool HttpProxyClientSocket::SetReceiveBufferSize(int32 size) {
+int HttpProxyClientSocket::SetReceiveBufferSize(int32 size) {
   return transport_->socket()->SetReceiveBufferSize(size);
 }
 
-bool HttpProxyClientSocket::SetSendBufferSize(int32 size) {
+int HttpProxyClientSocket::SetSendBufferSize(int32 size) {
   return transport_->socket()->SetSendBufferSize(size);
 }
 
 int HttpProxyClientSocket::GetPeerAddress(IPEndPoint* address) const {
   return transport_->socket()->GetPeerAddress(address);
 }
 
 int HttpProxyClientSocket::GetLocalAddress(IPEndPoint* address) const {
   return transport_->socket()->GetLocalAddress(address);
 }
@@ skipping 274 matching lines @@
 
 int HttpProxyClientSocket::DoTCPRestartComplete(int result) {
   if (result != OK)
     return result;
 
   next_state_ = STATE_GENERATE_AUTH_TOKEN;
   return result;
 }
 
 }  // namespace net