Remove the HostResolver::Shutdown() method....

net/base/fixed_host_resolver.h

 // Copyright (c) 2009 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 NET_BASE_FIXED_HOST_RESOLVER_H_
 #define NET_BASE_FIXED_HOST_RESOLVER_H_
 
 #include <string>
 
 #include "net/base/address_list.h"
@@ skipping 10 matching lines @@
 
   // HostResolver methods:
   virtual int Resolve(const RequestInfo& info,
                       AddressList* addresses,
                       CompletionCallback* callback,
                       RequestHandle* out_req,
                       LoadLog* load_log);
   virtual void CancelRequest(RequestHandle req) {}
   virtual void AddObserver(Observer* observer) {}
   virtual void RemoveObserver(Observer* observer) {}
-  virtual void Shutdown() {}
 
  private:
   ~FixedHostResolver() {}
 
   AddressList address_;
   bool initialized_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_MOCK_HOST_RESOLVER_H_