Move data reduction proxy logic out of chrome and android webview network delegate

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 32bc8146a03b27c5abe59108e7426992fa7c619e..3be3c3ca804de18044ca5782f86665ac2cf4607b 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -43,6 +43,7 @@
 #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_delegate.h"
+#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_prefs.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_protocol.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
@@ -582,18 +583,22 @@ void IOThread::InitAsync() {
       extension_event_router_forwarder_;
 #endif
 
-  ChromeNetworkDelegate* network_delegate =
+  scoped_ptr<ChromeNetworkDelegate> chrome_network_delegate(
       new ChromeNetworkDelegate(extension_event_router_forwarder(),
-                                &system_enable_referrers_);
+                                &system_enable_referrers_));
 
   if (command_line.HasSwitch(switches::kEnableClientHints))
-    network_delegate->SetEnableClientHints();
+    chrome_network_delegate->SetEnableClientHints();
 
 #if defined(ENABLE_EXTENSIONS)
   if (command_line.HasSwitch(switches::kDisableExtensionsHttpThrottling))
-    network_delegate->NeverThrottleRequests();
+    chrome_network_delegate->NeverThrottleRequests();
 #endif
 
+  data_reduction_proxy::DataReductionProxyNetworkDelegate* network_delegate =
+      new data_reduction_proxy::DataReductionProxyNetworkDelegate(
+          chrome_network_delegate.Pass());
+
   globals_->system_network_delegate.reset(network_delegate);
   globals_->host_resolver = CreateGlobalHostResolver(net_log_);
   UpdateDnsClientEnabled();
@@ -1134,7 +1139,7 @@ void IOThread::ConfigureQuic(const CommandLine& command_line) {
 }
 
 void IOThread::SetupDataReductionProxy(
-    ChromeNetworkDelegate* network_delegate) {
+    data_reduction_proxy::DataReductionProxyNetworkDelegate* network_delegate) {
   // TODO(kundaji): Move flags initialization to DataReductionProxyParams and
   // merge with flag initialization in
   // data_reduction_proxy_chrome_settings_factory.cc.