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

remoting/jingle_glue/chromium_socket_factory.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 "remoting/jingle_glue/chromium_socket_factory.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "jingle/glue/utils.h"
@@ skipping 207 matching lines @@
     NOTREACHED();
     return EINVAL;
   }
 
   switch (option) {
     case talk_base::Socket::OPT_DONTFRAGMENT:
       NOTIMPLEMENTED();
       return -1;
 
     case talk_base::Socket::OPT_RCVBUF: {
-      bool success = socket_->SetReceiveBufferSize(value);
-      return success ? 0 : -1;
+      int net_error = socket_->SetReceiveBufferSize(value);
+      return (net_error == net::OK) ? 0 : -1;
     }
 
     case talk_base::Socket::OPT_SNDBUF: {
-      bool success = socket_->SetSendBufferSize(value);
-      return success ? 0 : -1;
+      int net_error = socket_->SetSendBufferSize(value);
+      return (net_error == net::OK) ? 0 : -1;
     }
 
     case talk_base::Socket::OPT_NODELAY:
       // OPT_NODELAY is only for TCP sockets.
       NOTREACHED();
       return -1;
 
     case talk_base::Socket::OPT_IPV6_V6ONLY:
       NOTIMPLEMENTED();
       return -1;
@@ skipping 131 matching lines @@
   NOTREACHED();
   return NULL;
 }
 
 talk_base::AsyncResolverInterface*
 ChromiumPacketSocketFactory::CreateAsyncResolver() {
   return new talk_base::AsyncResolver();
 }
 
 }  // namespace remoting