Allow URLRequests from one context to have different NetworkDelegates.

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 d61b3c39d899ee7980292f97110c1e83dc5e6a53..16f441f0bc9b7f6fd772ce455a6ed883fe5396ac 100644
--- a/net/url_request/url_request_test_util.cc
+++ b/net/url_request/url_request_test_util.cc
@@ -134,7 +134,9 @@ TestURLRequest::TestURLRequest(const GURL& url,
                                RequestPriority priority,
                                Delegate* delegate,
                                TestURLRequestContext* context)
-    : URLRequest(url, priority, delegate, context) {}
+    : URLRequest(url, priority, delegate, context, context->cookie_store(),
+                 context->network_delegate()) {
+}
 
 TestURLRequest::~TestURLRequest() {
 }