Wrapped data reduction proxy initialization into its own class

chrome/browser/io_thread.h

Index: chrome/browser/io_thread.h
diff --git a/chrome/browser/io_thread.h b/chrome/browser/io_thread.h
index d487b50d708712657ed266a765901b9e9b5df0f7..0a33811548114a639f6d137e75005904d0f53632 100644
--- a/chrome/browser/io_thread.h
+++ b/chrome/browser/io_thread.h
@@ -38,12 +38,6 @@ namespace chrome_browser_net {
 class DnsProbeService;
 }
 
-namespace data_reduction_proxy {
-class DataReductionProxyAuthRequestHandler;
-class DataReductionProxyDelegate;
-class DataReductionProxyParams;
-}
-
 namespace extensions {
 class EventRouterForwarder;
 }
@@ -205,12 +199,6 @@ class IOThread : public content::BrowserThreadDelegate {
     // main frame load fails with a DNS error in order to provide more useful
     // information to the renderer so it can show a more specific error page.
     scoped_ptr<chrome_browser_net::DnsProbeService> dns_probe_service;
-    scoped_ptr<data_reduction_proxy::DataReductionProxyParams>
-        data_reduction_proxy_params;
-    scoped_ptr<data_reduction_proxy::DataReductionProxyAuthRequestHandler>
-        data_reduction_proxy_auth_request_handler;
-    scoped_ptr<data_reduction_proxy::DataReductionProxyDelegate>
-        data_reduction_proxy_delegate;
   };
 
   // |net_log| must either outlive the IOThread or be NULL.
@@ -321,9 +309,6 @@ class IOThread : public content::BrowserThreadDelegate {
   // well as the QUIC field trial group.
   void ConfigureQuic(const base::CommandLine& command_line);
 
-  // Set up data reduction proxy related objects on IO thread globals.
-  void SetupDataReductionProxy();
-
   extensions::EventRouterForwarder* extension_event_router_forwarder() {
 #if defined(ENABLE_EXTENSIONS)
     return extension_event_router_forwarder_;