Change ui::Event::time_stamp from TimeDelta to TimeTicks

components/mus/common/event_param_traits.cc

Index: components/mus/common/event_param_traits.cc
diff --git a/components/mus/common/event_param_traits.cc b/components/mus/common/event_param_traits.cc
index 5e59d4fa39e1cbf0698b8613139647bdd6013275..00d21e2f3a132f6a594037008b538f7e80935200 100644
--- a/components/mus/common/event_param_traits.cc
+++ b/components/mus/common/event_param_traits.cc
@@ -44,7 +44,7 @@ namespace IPC {
 // implementation).
 #define EVENT_IMPL(ReturnType, methodName, implName, defaultCase, ...)  \
   ReturnType ParamTraits<ui::ScopedEvent>::methodName(                  \
-      ui::EventType type, base::TimeDelta time_stamp, int flags,        \
+      ui::EventType type, base::TimeTicks time_stamp, int flags,        \
       ##__VA_ARGS__) {                                                  \
     switch (type) {                                                     \
       case ui::EventType::ET_MOUSE_PRESSED:                             \
@@ -203,7 +203,7 @@ bool ParamTraits<ui::ScopedEvent>::Read(const base::Pickle* m,
 
   ui::EventType type;
   std::string name;
-  base::TimeDelta time_stamp;
+  base::TimeTicks time_stamp;
   int flags;
   ui::EventPhase phase;
   ui::EventResult result;