Test current behavior of -component-updater=fast-update in ConfiguratorImpl.

components/component_updater/configurator_impl.cc

Index: components/component_updater/configurator_impl.cc
diff --git a/components/component_updater/configurator_impl.cc b/components/component_updater/configurator_impl.cc
index 8da26fd6f7434392f3314c60a3174769b4673a4e..c4cb5fae555c6271bf4f65d9af3541420fc04ec6 100644
--- a/components/component_updater/configurator_impl.cc
+++ b/components/component_updater/configurator_impl.cc
@@ -25,11 +25,14 @@
 namespace component_updater {
 
 namespace {
+
 // Default time constants.
 const int kDelayOneMinute = 60;
 const int kDelayOneHour = kDelayOneMinute * 60;
 
-// Debug values you can pass to --component-updater=value1,value2.
+// Debug values you can pass to --component-updater=value1,value2. Do not
+// use these values in production code.
+
 // Speed up component checking.
 const char kSwitchFastUpdate[] = "fast-update";