Even more virtual method deinlining.

net/base/host_resolver_impl.h

 // Copyright (c) 2010 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_HOST_RESOLVER_IMPL_H_
 #define NET_BASE_HOST_RESOLVER_IMPL_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 87 matching lines @@
   virtual void RemoveObserver(HostResolver::Observer* observer);
 
   // Set address family, and disable IPv6 probe support.
   virtual void SetDefaultAddressFamily(AddressFamily address_family);
   virtual AddressFamily GetDefaultAddressFamily() const;
 
   // Continuously observe whether IPv6 is supported, and set the allowable
   // address family to IPv4 iff IPv6 is not supported.
   void ProbeIPv6Support();
 
-  virtual HostResolverImpl* GetAsHostResolverImpl() { return this; }
+  virtual HostResolverImpl* GetAsHostResolverImpl();
 
   // TODO(eroman): hack for http://crbug.com/15513
   virtual void Shutdown();
 
   // Returns the cache this resolver uses, or NULL if caching is disabled.
   HostCache* cache() { return cache_.get(); }
 
   // Applies a set of constraints for requests that belong to the specified
   // pool. NOTE: Don't call this after requests have been already been started.
   //
@@ skipping 157 matching lines @@
   HostResolverFlags additional_resolver_flags_;
 
   NetLog* net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(HostResolverImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_HOST_RESOLVER_IMPL_H_