HttpServerProperties - Track UpdatePrefs callers. In offical builds, on

net/http/http_server_properties_manager_unittest.cc

Index: net/http/http_server_properties_manager_unittest.cc
diff --git a/net/http/http_server_properties_manager_unittest.cc b/net/http/http_server_properties_manager_unittest.cc
index 55dc7b8cc04a41559b4628ed5d6c28b15ca611c0..c3c7c41412d369985823dd765b9ba7e141884fc8 100644
--- a/net/http/http_server_properties_manager_unittest.cc
+++ b/net/http/http_server_properties_manager_unittest.cc
@@ -744,7 +744,8 @@ TEST_F(HttpServerPropertiesManagerTest, ShutdownWithPendingUpdateCache2) {
 //
 TEST_F(HttpServerPropertiesManagerTest, ShutdownWithPendingUpdatePrefs0) {
   // Post an update task to the IO thread.
-  http_server_props_manager_->ScheduleUpdatePrefsOnNetworkThread();
+  http_server_props_manager_->ScheduleUpdatePrefsOnNetworkThread(
+      HttpServerPropertiesManager::UNIT_TESTS);
   // Shutdown comes before the task is executed.
   http_server_props_manager_->ShutdownOnPrefThread();
   http_server_props_manager_.reset();
@@ -755,7 +756,8 @@ TEST_F(HttpServerPropertiesManagerTest, ShutdownWithPendingUpdatePrefs0) {
 TEST_F(HttpServerPropertiesManagerTest, ShutdownWithPendingUpdatePrefs1) {
   ExpectPrefsUpdate();
   // Post an update task.
-  http_server_props_manager_->ScheduleUpdatePrefsOnNetworkThread();
+  http_server_props_manager_->ScheduleUpdatePrefsOnNetworkThread(
+      HttpServerPropertiesManager::UNIT_TESTS);
   // Shutdown comes before the task is executed.
   http_server_props_manager_->ShutdownOnPrefThread();
   // Run the task after shutdown, but before deletion.