Delete unused code in chrome/common or mark them as platform specific.

chrome/common/local_discovery/service_discovery_client_impl.h

 // 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.
 
 #ifndef CHROME_COMMON_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_
 #define CHROME_COMMON_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 190 matching lines @@
   RequestStatus MDnsStatusToRequestStatus(
       net::MDnsTransaction::Result status) const;
 
   bool CreateTxtTransaction();
   bool CreateSrvTransaction();
   void CreateATransaction();
 
   std::string service_name_;
   ResolveCompleteCallback callback_;
 
-  bool has_resolved_;
-
   bool metadata_resolved_;
   bool address_resolved_;
 
   scoped_ptr<net::MDnsTransaction> txt_transaction_;
   scoped_ptr<net::MDnsTransaction> srv_transaction_;
   scoped_ptr<net::MDnsTransaction> a_transaction_;
 
   ServiceDescription service_staging_;
 
   net::MDnsClient* mdns_client_;
@@ skipping 40 matching lines @@
 
   base::CancelableCallback<void()> timeout_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalDomainResolverImpl);
 };
 
 
 }  // namespace local_discovery
 
 #endif  // CHROME_COMMON_LOCAL_DISCOVERY_SERVICE_DISCOVERY_CLIENT_IMPL_H_