Update data reduction proxy statistics prefs less often on desktop

chrome/browser/profiles/profile_impl_io_data.cc

Index: chrome/browser/profiles/profile_impl_io_data.cc
diff --git a/chrome/browser/profiles/profile_impl_io_data.cc b/chrome/browser/profiles/profile_impl_io_data.cc
index 190fe5cd062d0f8e499a1c548875f6e2ec2f4589..e269e3e8330fddd79e1ad0c8f94259e58b33fa16 100644
--- a/chrome/browser/profiles/profile_impl_io_data.cc
+++ b/chrome/browser/profiles/profile_impl_io_data.cc
@@ -55,6 +55,7 @@
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_auth_request_handler.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_protocol.h"
+#include "components/data_reduction_proxy/browser/data_reduction_proxy_statistics_prefs.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_usage_stats.h"
 #include "components/data_reduction_proxy/common/data_reduction_proxy_pref_names.h"
 #endif  // defined(SPDY_PROXY_AUTH_ORIGIN)
@@ -141,7 +142,9 @@ void ProfileImplIOData::Handle::Init(
     scoped_ptr<DataReductionProxyChromeConfigurator>
         data_reduction_proxy_chrome_configurator,
     scoped_ptr<data_reduction_proxy::DataReductionProxyParams>
-        data_reduction_proxy_params) {
+        data_reduction_proxy_params,
+    scoped_ptr<data_reduction_proxy::DataReductionProxyStatisticsPrefs>
+        data_reduction_proxy_statistics_prefs) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!io_data_->lazy_params_);
   DCHECK(predictor);
@@ -181,6 +184,8 @@ void ProfileImplIOData::Handle::Init(
       data_reduction_proxy_chrome_configurator.Pass();
   io_data_->data_reduction_proxy_params_ =
       data_reduction_proxy_params.Pass();
+  io_data_->data_reduction_proxy_statistics_prefs_ =
+      data_reduction_proxy_statistics_prefs.Pass();
 #endif  // defined(SPDY_PROXY_AUTH_ORIGIN)
 }
 
@@ -450,6 +455,8 @@ void ProfileImplIOData::InitializeInternal(
       data_reduction_proxy_usage_stats_.get());
   network_delegate()->set_data_reduction_proxy_auth_request_handler(
       data_reduction_proxy_auth_request_handler_.get());
+  network_delegate()->set_data_reduction_proxy_statistics_prefs(
+      data_reduction_proxy_statistics_prefs_.get());
   network_delegate()->set_on_resolve_proxy_handler(
       base::Bind(data_reduction_proxy::OnResolveProxyHandler));
   network_delegate()->set_proxy_config_getter(