Kill URLRequestJobTracker.

net/base/network_delegate.cc

Index: net/base/network_delegate.cc
diff --git a/net/base/network_delegate.cc b/net/base/network_delegate.cc
index 248ef45dbe8af47c4f9dbd49ec95616b0070c25c..2c1526190ffa01350ae957436697cb0e486637ae 100644
--- a/net/base/network_delegate.cc
+++ b/net/base/network_delegate.cc
@@ -40,6 +40,12 @@ void NetworkDelegate::NotifyResponseStarted(URLRequest* request) {
   OnResponseStarted(request);
 }
 
+void NetworkDelegate::NotifyBytesRead(const URLRequest& request,
+                                      int bytes_read) {
+  DCHECK(CalledOnValidThread());
+  OnBytesRead(request, bytes_read);
+}
+
 void NetworkDelegate::NotifyBeforeRedirect(URLRequest* request,
                                            const GURL& new_location) {
   DCHECK(CalledOnValidThread());