Revert of Moving proxy resolution logic out of NetworkDelegate and into ProxyDelegate

net/url_request/url_request_test_util.h

Index: net/url_request/url_request_test_util.h
diff --git a/net/url_request/url_request_test_util.h b/net/url_request/url_request_test_util.h
index 27fa9fcff8cf6e2c40d2fd59668e71d2d7a9ac18..1a829d5c12cf3e2b47c5ca48c17c50b188cb5ca3 100644
--- a/net/url_request/url_request_test_util.h
+++ b/net/url_request/url_request_test_util.h
@@ -69,12 +69,6 @@
     client_socket_factory_ = factory;
   }
 
-  ProxyDelegate* proxy_delegate() { return proxy_delegate_; }
-
-  void set_proxy_delegate(ProxyDelegate* proxy_delegate) {
-    proxy_delegate_ = proxy_delegate;
-  }
-
   void set_http_network_session_params(
       scoped_ptr<HttpNetworkSession::Params> params) {
     http_network_session_params_ = std::move(params);
@@ -94,8 +88,6 @@
 
   // Not owned:
   ClientSocketFactory* client_socket_factory_;
-
-  ProxyDelegate* proxy_delegate_;
 
  protected:
   URLRequestContextStorage context_storage_;