Add fine grain tracing to HostResolverImpl....

net/proxy/proxy_resolver_js_bindings_unittest.cc

 // 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.
 
 #include "base/scoped_ptr.h"
 #include "net/base/address_list.h"
 #include "net/base/mock_host_resolver.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/base/sys_addrinfo.h"
@@ skipping 19 matching lines @@
     // Build up the result list (in reverse).
     AddressList temp_list = ResolveIPLiteral("200.100.1.2");
     temp_list = PrependAddressToList("172.22.34.1", temp_list);
     temp_list = PrependAddressToList("192.168.1.1", temp_list);
     *addresses = temp_list;
     return OK;
   }
   virtual void CancelRequest(RequestHandle req) {}
   virtual void AddObserver(Observer* observer) {}
   virtual void RemoveObserver(Observer* observer) {}
-  virtual HostCache* GetHostCache() { return NULL; }
   virtual void Shutdown() {}
 
  private:
   ~MockHostResolverWithMultipleResults() {}
 
   // Resolves an IP literal to an address list.
   AddressList ResolveIPLiteral(const char* ip_literal) {
     AddressList result;
     int rv = SystemHostResolverProc(ip_literal,
                                     ADDRESS_FAMILY_UNSPECIFIED,
@@ skipping 129 matching lines @@
 
   EXPECT_EQ("192.168.1.1;172.22.34.1;200.100.1.2",
             bindings->MyIpAddressEx());
 
   EXPECT_EQ("192.168.1.1;172.22.34.1;200.100.1.2",
             bindings->DnsResolveEx("FOO"));
 }
 
 }  // namespace
 }  // namespace net