Remove unused DataReductionProxy code

components/data_reduction_proxy/content/browser/content_lofi_decider_unittest.cc

 // Copyright 2015 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 "components/data_reduction_proxy/content/browser/content_lofi_decider.h"
 
 #include <stddef.h>
 #include <string>
 #include <utility>
 
@@ skipping 61 matching lines @@
                         .WithMockClientSocketFactory(&mock_socket_factory_)
                         .WithURLRequestContext(&context_)
                         .Build();
 
     data_reduction_proxy_network_delegate_.reset(
         new DataReductionProxyNetworkDelegate(
             scoped_ptr<net::NetworkDelegate>(new net::NetworkDelegateImpl()),
             test_context_->config(),
             test_context_->io_data()->request_options(),
             test_context_->configurator(),
-            test_context_->io_data()->experiments_stats(),
             test_context_->net_log(), test_context_->event_creator()));
 
     data_reduction_proxy_network_delegate_->InitIODataAndUMA(
         test_context_->io_data(), test_context_->io_data()->bypass_stats());
 
     context_.set_network_delegate(data_reduction_proxy_network_delegate_.get());
 
     scoped_ptr<data_reduction_proxy::ContentLoFiDecider>
         data_reduction_proxy_lofi_decider(
             new data_reduction_proxy::ContentLoFiDecider());
@@ skipping 297 matching lines @@
     scoped_ptr<net::URLRequest> request =
         CreateRequest(tests[i].network_prohibitively_slow);
     net::HttpRequestHeaders headers;
     NotifyBeforeSendProxyHeaders(&headers, request.get());
 
     VerifyLoFiHeader(expect_lofi_header, headers);
   }
 }
 
 }  // namespace data_reduction_roxy