make IsRepeated work even when a KeyEvent is created from the same native event.

ui/events/test/event_generator.cc

Index: ui/events/test/event_generator.cc
diff --git a/ui/events/test/event_generator.cc b/ui/events/test/event_generator.cc
index f743ba18408f9b98626ff2859a806d2a53225577..26df7b43877c69ec3110d2093f971320f117f4ea 100644
--- a/ui/events/test/event_generator.cc
+++ b/ui/events/test/event_generator.cc
@@ -10,6 +10,7 @@
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/default_tick_clock.h"
+#include "base/time/tick_clock.h"
 #include "ui/events/event.h"
 #include "ui/events/event_source.h"
 #include "ui/events/event_utils.h"
@@ -32,6 +33,21 @@ namespace {
 void DummyCallback(EventType, const gfx::Vector2dF&) {
 }
 
+class TestTickClock : public base::TickClock {
+ public:
+  // Starts off with a clock set to TimeTicks().
+  TestTickClock() {}
+
+  base::TimeTicks NowTicks() override {
+    return base::TimeTicks::FromInternalValue(ticks_++ * 1000);
+  }
+
+ private:
+  int64 ticks_ = 1;
+
+  DISALLOW_COPY_AND_ASSIGN(TestTickClock);
+};
+
 class TestKeyEvent : public ui::KeyEvent {
  public:
   TestKeyEvent(const base::NativeEvent& native_event, int flags)
@@ -518,6 +534,9 @@ void EventGenerator::Init(gfx::NativeWindow root_window,
   if (window_context)
     current_location_ = delegate()->CenterOfWindow(window_context);
   current_target_ = delegate()->GetTargetAt(current_location_);
+
+  scoped_ptr<base::TickClock> clock(new TestTickClock);
+  SetTickClock(clock.Pass());
 }
 
 void EventGenerator::DispatchKeyEvent(bool is_press,
@@ -537,12 +556,14 @@ void EventGenerator::DispatchKeyEvent(bool is_press,
   }
   MSG native_event =
       { NULL, (is_press ? key_press : WM_KEYUP), key_code, 0 };
+  native_event.time = Now().InMicroseconds();
   TestKeyEvent keyev(native_event, flags);
 #elif defined(USE_X11)
   ui::ScopedXI2Event xevent;
   xevent.InitKeyEvent(is_press ? ui::ET_KEY_PRESSED : ui::ET_KEY_RELEASED,
                       key_code,
                       flags);
+  static_cast<XEvent*>(xevent)->xkey.time = Now().InMicroseconds();
   ui::KeyEvent keyev(xevent);
 #else
   ui::EventType type = is_press ? ui::ET_KEY_PRESSED : ui::ET_KEY_RELEASED;