Wrapped data reduction proxy initialization into its own class

components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.cc
index 2590da02b6cc2dac4efb2a1f33634f576b1c5454..a2d6c6bae6cbe7f419c961bccd2119c92c849f5d 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.cc
@@ -11,6 +11,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.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_protocol.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_statistics_prefs.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_usage_stats.h"
@@ -72,7 +73,7 @@ DataReductionProxyNetworkDelegate::DataReductionProxyNetworkDelegate(
     scoped_ptr<net::NetworkDelegate> network_delegate,
     DataReductionProxyParams* params,
     DataReductionProxyAuthRequestHandler* handler,
-    const ProxyConfigGetter& getter)
+    const DataReductionProxyConfigurator* configurator)
     : LayeredNetworkDelegate(network_delegate.Pass()),
       ui_task_runner_(NULL),
       received_content_length_(0),
@@ -82,7 +83,7 @@ DataReductionProxyNetworkDelegate::DataReductionProxyNetworkDelegate(
       data_reduction_proxy_usage_stats_(NULL),
       data_reduction_proxy_auth_request_handler_(handler),
       data_reduction_proxy_statistics_prefs_(NULL),
-      proxy_config_getter_(getter) {
+      configurator_(configurator) {
   DCHECK(data_reduction_proxy_params_);
   DCHECK(data_reduction_proxy_auth_request_handler_);
 }
@@ -92,7 +93,7 @@ DataReductionProxyNetworkDelegate::~DataReductionProxyNetworkDelegate() {
 
 void DataReductionProxyNetworkDelegate::InitProxyConfigOverrider(
     const OnResolveProxyHandler& proxy_handler) {
-  DCHECK(!proxy_config_getter_.is_null());
+  DCHECK(configurator_);
   on_resolve_proxy_handler_ = proxy_handler;
 }
 
@@ -145,11 +146,11 @@ void DataReductionProxyNetworkDelegate::OnResolveProxyInternal(
     int load_flags,
     const net::ProxyService& proxy_service,
     net::ProxyInfo* result) {
-  if (!on_resolve_proxy_handler_.is_null() &&
-      !proxy_config_getter_.is_null()) {
+  if (!on_resolve_proxy_handler_.is_null() && configurator_) {
     on_resolve_proxy_handler_.Run(
-        url, load_flags, proxy_config_getter_.Run(), proxy_service.config(),
-        proxy_service.proxy_retry_info(), data_reduction_proxy_params_, result);
+        url, load_flags, configurator_->GetProxyConfigOnIOThread(),
+        proxy_service.config(), proxy_service.proxy_retry_info(),
+        data_reduction_proxy_params_, result);
   }
 }
 
@@ -215,11 +216,11 @@ void DataReductionProxyNetworkDelegate::OnCompletedInternal(
 
     if (data_reduction_proxy_enabled_ &&
         data_reduction_proxy_usage_stats_ &&
-        !proxy_config_getter_.is_null()) {
+        configurator_) {
       data_reduction_proxy_usage_stats_->RecordBytesHistograms(
           request,
           *data_reduction_proxy_enabled_,
-          proxy_config_getter_.Run());
+          configurator_->GetProxyConfigOnIOThread());
     }
     DVLOG(2) << __FUNCTION__
         << " received content length: " << received_content_length