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

net/url_request/url_request_test_util.cc

Index: net/url_request/url_request_test_util.cc
diff --git a/net/url_request/url_request_test_util.cc b/net/url_request/url_request_test_util.cc
index d13ee06142120b8c37ab467c9dac0cec50119998..e3627c454651c0ea83abbb45c8d0389af2748a80 100644
--- a/net/url_request/url_request_test_util.cc
+++ b/net/url_request/url_request_test_util.cc
@@ -296,13 +296,16 @@ TestNetworkDelegate::TestNetworkDelegate()
 
 TestNetworkDelegate::~TestNetworkDelegate() {}
 
-bool TestNetworkDelegate::OnBeforeURLRequest(
+int TestNetworkDelegate::OnBeforeURLRequest(
     net::URLRequest* request, net::CompletionCallback* callback) {
-  return false;
+  return net::OK;
 }
 
-void TestNetworkDelegate::OnSendHttpRequest(
-    net::HttpRequestHeaders* headers) {
+int TestNetworkDelegate::OnBeforeSendHeaders(
+    uint64 request_id,
+    net::HttpRequestHeaders* headers,
+    net::CompletionCallback* callback) {
+  return net::OK;
 }
 
 void TestNetworkDelegate::OnResponseStarted(net::URLRequest* request) {
@@ -320,6 +323,9 @@ void TestNetworkDelegate::OnReadCompleted(net::URLRequest* request,
   }
 }
 
+void TestNetworkDelegate::OnURLRequestDestroyed(net::URLRequest* request) {
+}
+
 net::URLRequestJob* TestNetworkDelegate::OnMaybeCreateURLRequestJob(
     net::URLRequest* request) {
   return NULL;