Avoid error messages from UDP sockets in Chromoting client.

remoting/client/plugin/pepper_network_manager.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/client/plugin/pepper_network_manager.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 58 matching lines @@
   for (size_t i = 0; i < count; i++) {
     std::vector<pp::NetAddress> addresses;
     list.GetIpAddresses(i, &addresses);
 
     if (addresses.size() == 0)
       continue;
 
     for (size_t i = 0; i < addresses.size(); ++i) {
       talk_base::SocketAddress address;
       PpNetAddressToSocketAddress(addresses[i], &address);
+
+      if (address.family() == AF_INET6 && IPIsSiteLocal(address.ipaddr())) {
+        // Link-local IPv6 addresses can't be bound via the current PPAPI
+        // Bind() interface as designed (see crbug.com/384854); trying to do so
+        // would fail.
+        continue;
+      }
+
       talk_base::Network* network = new talk_base::Network(
           list.GetName(i), list.GetDisplayName(i), address.ipaddr(), 0);
       network->AddIP(address.ipaddr());
       networks.push_back(network);
     }
   }
 
   bool changed = false;
   MergeNetworkList(networks, &changed);
   if (changed)
     SignalNetworksChanged();
 }
 
 void PepperNetworkManager::SendNetworksChangedSignal() {
   SignalNetworksChanged();
 }
 
 }  // namespace remoting