Reduce log spam for linux-chromeos

chromeos/network/host_resolver_impl_chromeos.cc

 // Copyright 2014 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 "chromeos/network/host_resolver_impl_chromeos.h"
 
 #include "base/message_loop/message_loop_proxy.h"
+#include "base/sys_info.h"
 #include "base/values.h"
 #include "chromeos/network/device_state.h"
 #include "chromeos/network/network_handler.h"
 #include "chromeos/network/network_state.h"
 #include "chromeos/network/network_state_handler.h"
 #include "chromeos/network/network_state_handler_observer.h"
 #include "net/base/address_list.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
@@ skipping 36 matching lines @@
   virtual void DefaultNetworkChanged(const NetworkState* network) OVERRIDE {
     if (!network) {
       DVLOG(2) << "DefaultNetworkChanged: No Network.";
       CallResolverSetIpAddress("", "");
       return;
     }
     std::string ipv4_address, ipv6_address;
     const DeviceState* device_state =
         network_state_handler_->GetDeviceState(network->device_path());
     if (!device_state) {
-      LOG(ERROR) << "DefaultNetworkChanged: Network missing device: "
-                 << network->path();
+      LOG_IF(ERROR, base::SysInfo::IsRunningOnChromeOS())
+          << "DefaultNetworkChanged: Network missing device: "
+          << network->path();
       CallResolverSetIpAddress("", "");
       return;
     }
     for (base::DictionaryValue::Iterator iter(device_state->ip_configs());
          !iter.IsAtEnd(); iter.Advance()) {
       const base::DictionaryValue* ip_config;
       if (!iter.value().GetAsDictionary(&ip_config)) {
         LOG(ERROR) << "Badly formatted IPConfigs: " << network->path();
         continue;
       }
@@ skipping 129 matching lines @@
     NetworkStateHandler* network_state_handler) {
   Options options;
   return scoped_ptr<net::HostResolver>(new HostResolverImplChromeOS(
       network_handler_message_loop,
       network_state_handler,
       options,
       NULL));
 }
 
 }  // namespace chromeos