Remove unnecessary mocking of TickClock for events

components/exo/touch_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/wm/window_positioner.h"
 #include "ash/shell.h"
 #include "ash/wm/window_util.h"
 #include "components/exo/buffer.h"
 #include "components/exo/shell_surface.h"
 #include "components/exo/surface.h"
 #include "components/exo/test/exo_test_base.h"
 #include "components/exo/test/exo_test_helper.h"
 #include "components/exo/touch.h"
 #include "components/exo/touch_delegate.h"
 #include "testing/gmock/include/gmock/gmock.h"
+#include "ui/events/base_event_utils.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/views/widget/widget.h"
 
 namespace exo {
 namespace {
 
 using TouchTest = test::ExoTestBase;
 
 class MockTouchDelegate : public TouchDelegate {
  public:
@@ skipping 147 matching lines @@
               OnTouchDown(surface.get(), testing::_, testing::_, gfx::Point()))
       .Times(2);
   generator.set_current_location(
       surface->window()->GetBoundsInScreen().origin());
   generator.PressTouchId(1);
   generator.PressTouchId(2);
 
   // One touch point being canceled is enough for OnTouchCancel to be called.
   EXPECT_CALL(delegate, OnTouchCancel());
   ui::TouchEvent cancel_event(ui::ET_TOUCH_CANCELLED, gfx::Point(), 1,
-                              generator.Now());
+                              ui::EventTimeForNow());
   generator.Dispatch(&cancel_event);
 
   EXPECT_CALL(delegate, OnTouchDestroying(touch.get()));
   touch.reset();
 }
 
 }  // namespace
 }  // namespace exo