Test network annotation tags added to unittests in net/url_request.

net/url_request/url_request_throttler_simulation_unittest.cc

Index: net/url_request/url_request_throttler_simulation_unittest.cc
diff --git a/net/url_request/url_request_throttler_simulation_unittest.cc b/net/url_request/url_request_throttler_simulation_unittest.cc
index a4465d2c86ec4ee9ef39161b8fd71c919c6f3f2f..f332084d86ef89ca81d746a35911257b771aeaf3 100644
--- a/net/url_request/url_request_throttler_simulation_unittest.cc
+++ b/net/url_request/url_request_throttler_simulation_unittest.cc
@@ -22,6 +22,7 @@
 #include "base/rand_util.h"
 #include "base/time/time.h"
 #include "net/base/request_priority.h"
+#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_test_util.h"
@@ -127,7 +128,10 @@ class Server : public DiscreteTimeSimulation::Actor {
         num_current_tick_queries_(0),
         num_overloaded_ticks_(0),
         max_experienced_queries_per_tick_(0),
-        mock_request_(context_.CreateRequest(GURL(), DEFAULT_PRIORITY, NULL)) {}
+        mock_request_(context_.CreateRequest(GURL(),
+                                             DEFAULT_PRIORITY,
+                                             NULL,
+                                             TRAFFIC_ANNOTATION_FOR_TESTS)) {}
 
   void SetDowntime(const TimeTicks& start_time, const TimeDelta& duration) {
     start_downtime_ = start_time;