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

content/browser/renderer_host/p2p/socket_host_test_utils.cc

 // Copyright (c) 2013 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 "content/browser/renderer_host/p2p/socket_host_test_utils.h"
 
 #include "base/sys_byteorder.h"
 #include "base/thread_task_runner_handle.h"
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
@@ skipping 85 matching lines @@
                               const net::CompletionCallback& callback) {
   write_pending_ = false;
 
   if (written_data_) {
     written_data_->insert(written_data_->end(),
                           buf->data(), buf->data() + buf_len);
   }
   callback.Run(buf_len);
 }
 
-bool FakeSocket::SetReceiveBufferSize(int32 size) {
+int FakeSocket::SetReceiveBufferSize(int32 size) {
   NOTIMPLEMENTED();
-  return false;
+  return net::ERR_NOT_IMPLEMENTED;
 }
-bool FakeSocket::SetSendBufferSize(int32 size) {
+
+int FakeSocket::SetSendBufferSize(int32 size) {
   NOTIMPLEMENTED();
-  return false;
+  return net::ERR_NOT_IMPLEMENTED;
 }
 
 int FakeSocket::Connect(const net::CompletionCallback& callback) {
   return 0;
 }
 
 void FakeSocket::Disconnect() {
   NOTREACHED();
 }
 
@@ skipping 78 matching lines @@
 
 void CreateStunError(std::vector<char>* packet) {
   CreateStunPacket(packet, kStunBindingError);
 }
 
 net::IPEndPoint ParseAddress(const std::string ip_str, int port) {
   net::IPAddressNumber ip;
   EXPECT_TRUE(net::ParseIPLiteralToNumber(ip_str, &ip));
   return net::IPEndPoint(ip, port);
 }