Make the ChromeNetworkDelegate use the ExtensionEventRouterForwarder

chrome/browser/profiles/profile_impl_io_data.h

Index: chrome/browser/profiles/profile_impl_io_data.h
diff --git a/chrome/browser/profiles/profile_impl_io_data.h b/chrome/browser/profiles/profile_impl_io_data.h
index d4fcfc097efbb70d4bd7b78f9222d3b78369c3a5..f7be09353f288989b952378ab7cbe8118bcb4f08 100644
--- a/chrome/browser/profiles/profile_impl_io_data.h
+++ b/chrome/browser/profiles/profile_impl_io_data.h
@@ -10,7 +10,6 @@
 #include "base/ref_counted.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 
-class ExtensionIOEventRouter;
 namespace net {
 class NetworkDelegate;
 class DnsCertProvenanceChecker;
@@ -111,7 +110,6 @@ class ProfileImplIOData : public ProfileIOData {
   mutable scoped_refptr<RequestContext> media_request_context_;
   mutable scoped_refptr<RequestContext> extensions_request_context_;
 
-  mutable scoped_refptr<ExtensionIOEventRouter> extension_io_event_router_;
   mutable scoped_ptr<net::NetworkDelegate> network_delegate_;
   mutable scoped_ptr<net::DnsCertProvenanceChecker> dns_cert_checker_;
   mutable scoped_ptr<net::HttpTransactionFactory> main_http_factory_;