Add request_id to HttpRequestInfo and pass it to the NetworkDelegate for events.

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 6dcd39dc692c4285c78be6737a3e411b7e69798d..6ebdf880497d70b13173e2e28aef742c0224fc86 100644
--- a/net/url_request/url_request_test_util.h
+++ b/net/url_request/url_request_test_util.h
@@ -203,7 +203,9 @@ class TestNetworkDelegate : public net::NetworkDelegate {
   // net::NetworkDelegate:
   virtual bool OnBeforeURLRequest(net::URLRequest* request,
                                   net::CompletionCallback* callback);
-  virtual void OnSendHttpRequest(net::HttpRequestHeaders* headers);
+  virtual bool OnBeforeSendHeaders(uint64 request_id,
+                                   net::HttpRequestHeaders* headers,
+                                   net::CompletionCallback* callback);
   virtual void OnResponseStarted(net::URLRequest* request);
   virtual void OnReadCompleted(net::URLRequest* request, int bytes_read);
   virtual net::URLRequestJob* OnMaybeCreateURLRequestJob(