Track input latency with UMA stats

ui/views/corewm/compound_event_filter_unittest.cc

Index: ui/views/corewm/compound_event_filter_unittest.cc
diff --git a/ui/views/corewm/compound_event_filter_unittest.cc b/ui/views/corewm/compound_event_filter_unittest.cc
index 20442a3ba803eb337fc92dd57191ba2f07705183..34458f8b7e91e2be8eb2c54b91f7714753c5c4c3 100644
--- a/ui/views/corewm/compound_event_filter_unittest.cc
+++ b/ui/views/corewm/compound_event_filter_unittest.cc
@@ -13,11 +13,12 @@
 #include "ui/aura/test/test_activation_client.h"
 #include "ui/aura/test/test_windows.h"
 #include "ui/base/events/event.h"
+#include "ui/base/events/event_utils.h"
 
 namespace {
 
 base::TimeDelta GetTime() {
-  return base::Time::NowFromSystemTime() - base::Time();
+  return ui::EventTimeForNow();
 }
 
 class TestCursorClient : public aura::client::CursorClient {