DataReductionProxyStatisticsPrefs should support WeakPtr

chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc

Index: chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
diff --git a/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc b/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
index 81b669fffebeea116ca08b0e936ce33aed14f864..f4f94e865684d532869b2c600302c8ea555c3e96 100644
--- a/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
+++ b/chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.cc
@@ -32,35 +32,15 @@ CreateDataReductionProxyChromeIOData(
       DataReductionProxyChromeSettingsFactory::GetForBrowserContext(
           browser_context);
 
-#if defined(OS_ANDROID) || defined(OS_IOS)
-  // On mobile we write data reduction proxy prefs directly to the pref service.
-  // On desktop we store data reduction proxy prefs in memory, writing to disk
-  // every 60 minutes and on termination. Shutdown hooks must be added for
-  // Android and iOS in order for non-zero delays to be supported.
-  // (http://crbug.com/408264)
-  base::TimeDelta commit_delay = base::TimeDelta();
-#else
-  base::TimeDelta commit_delay = base::TimeDelta::FromMinutes(60);
-#endif
-
-  data_reduction_proxy::DataReductionProxyStatisticsPrefs*
-      data_reduction_proxy_statistics_prefs =
-          new data_reduction_proxy::DataReductionProxyStatisticsPrefs(
-              prefs, ui_task_runner,
-              commit_delay);
-
   scoped_ptr<data_reduction_proxy::DataReductionProxyIOData>
       data_reduction_proxy_io_data(
           new data_reduction_proxy::DataReductionProxyIOData(
               DataReductionProxyChromeSettings::GetClient(),
-              make_scoped_ptr(data_reduction_proxy_statistics_prefs),
               settings,
               net_log,
               io_task_runner,
               ui_task_runner));
   data_reduction_proxy_io_data->InitOnUIThread(prefs);
-  settings->SetDataReductionProxyStatisticsPrefs(
-      data_reduction_proxy_statistics_prefs);
 
   return data_reduction_proxy_io_data.Pass();
 }