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

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

Index: content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
index 0817791fe4a7401d50f7f9f1c948b7462bf35724..a507ff1d74feeaea5e9d22b193030850fadbb898 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
@@ -1242,14 +1242,14 @@ TEST_F(RenderWidgetHostViewAuraTest, TouchEventState) {
   EXPECT_EQ(0U, GetSentMessageCountAndResetSink());
 
   ui::TouchEvent move2(ui::ET_TOUCH_MOVED, gfx::Point(20, 20), 0,
-                       base::Time::NowFromSystemTime() - base::Time());
+                       base::TimeTicks::Now());
   view_->OnTouchEvent(&move2);
   EXPECT_TRUE(press.synchronous_handling_disabled());
   EXPECT_EQ(ui::MotionEvent::ACTION_MOVE, pointer_state().GetAction());
   EXPECT_EQ(1U, pointer_state().GetPointerCount());
 
   ui::TouchEvent release2(ui::ET_TOUCH_RELEASED, gfx::Point(20, 20), 0,
-                          base::Time::NowFromSystemTime() - base::Time());
+                          base::TimeTicks::Now());
   view_->OnTouchEvent(&release2);
   EXPECT_TRUE(press.synchronous_handling_disabled());
   EXPECT_EQ(0U, pointer_state().GetPointerCount());