Wrapped data reduction proxy initialization into its own class

chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.cc

 // 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.
 
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/metrics/chrome_metrics_service_accessor.h"
 #include "chrome/browser/prefs/proxy_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/pref_names.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_auth_request_handler.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_configurator.h"
+#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
 #include "net/url_request/url_request_context_getter.h"
 
 using data_reduction_proxy::Client;
 using data_reduction_proxy::DataReductionProxyParams;
 using data_reduction_proxy::DataReductionProxySettings;
 
 // The Data Reduction Proxy has been turned into a "best effort" proxy,
 // meaning it is used only if the effective proxy configuration resolves to
@@ skipping 23 matching lines @@
 }
 
 DataReductionProxyChromeSettings::DataReductionProxyChromeSettings(
     DataReductionProxyParams* params) : DataReductionProxySettings(params) {
 }
 
 DataReductionProxyChromeSettings::~DataReductionProxyChromeSettings() {
 }
 
 void DataReductionProxyChromeSettings::InitDataReductionProxySettings(
-    data_reduction_proxy::DataReductionProxyConfigurator* configurator,
+    data_reduction_proxy::DataReductionProxyIOData* io_data,
     PrefService* profile_prefs,
     PrefService* local_state_prefs,
-    net::URLRequestContextGetter* request_context,
-    net::NetLog* net_log,
-    data_reduction_proxy::DataReductionProxyEventStore* event_store) {
-  SetProxyConfigurator(configurator);
+    net::URLRequestContextGetter* request_context) {
+  SetProxyConfigurator(io_data->configurator());
   DataReductionProxySettings::InitDataReductionProxySettings(
       profile_prefs,
       request_context,
-      net_log,
-      event_store);
+      io_data->net_log(),
+      io_data->event_store());
   DataReductionProxySettings::SetOnDataReductionEnabledCallback(
       base::Bind(&DataReductionProxyChromeSettings::RegisterSyntheticFieldTrial,
                  base::Unretained(this)));
   SetDataReductionProxyAlternativeEnabled(
       DataReductionProxyParams::IsIncludedInAlternativeFieldTrial());
   // TODO(bengr): Remove after M46. See http://crbug.com/445599.
   MigrateDataReductionProxyOffProxyPrefs(profile_prefs);
 }
 
 void DataReductionProxyChromeSettings::RegisterSyntheticFieldTrial(
@@ skipping 22 matching lines @@
 #elif defined(OS_OPENBSD)
   return Client::CHROME_OPENBSD;
 #elif defined(OS_SOLARIS)
   return Client::CHROME_SOLARIS;
 #elif defined(OS_QNX)
   return Client::CHROME_QNX;
 #else
   return Client::UNKNOWN;
 #endif
 }