TCPSockets are switched to the new Pepper proxy.

ppapi/proxy/error_conversion.cc

 // Copyright 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 "ppapi/host/error_conversion.h"
+#include "ppapi/proxy/error_conversion.h"
 
 #include "base/safe_numerics.h"
 #include "net/base/net_errors.h"
 #include "ppapi/c/pp_errors.h"
 
 namespace ppapi {
-namespace host {
+namespace proxy {
 
 int32_t NetErrorToPepperError(int net_error) {
   if (net_error > 0)
     return base::checked_numeric_cast<int32_t>(net_error);
 
   switch (net_error) {
     case net::OK:
       return PP_OK;
     case net::ERR_IO_PENDING:
       return PP_OK_COMPLETIONPENDING;
@@ skipping 41 matching lines @@
       return PP_ERROR_NOACCESS;
     case net::ERR_MSG_TOO_BIG:
       return PP_ERROR_MESSAGE_TOO_BIG;
     case net::ERR_ADDRESS_IN_USE:
       return PP_ERROR_ADDRESS_IN_USE;
     default:
       return PP_ERROR_FAILED;
   }
 }
 
-}  // namespace host
+int32_t ConvertNetworkAPIErrorForCompatibility(int32_t pp_error,
+                                               bool private_api) {
+  // The private API doesn't return network-specific error codes or
+  // PP_ERROR_NOACCESS. In order to preserve the behavior, we convert those to
+  // PP_ERROR_FAILED.
+  if (private_api &&
+      (pp_error <= PP_ERROR_CONNECTION_CLOSED ||
+       pp_error == PP_ERROR_NOACCESS)) {
+    return PP_ERROR_FAILED;
+  }
+  return pp_error;
+}
+
+}  // namespace proxy
 }  // namespace ppapi