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

ui/aura/window_unittest.cc

 // Copyright (c) 2012 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 "ui/aura/window.h"
 
 #include <limits.h>
 
 #include <string>
 #include <utility>
@@ skipping 273 matching lines @@
   }
 
   const gfx::Point& position() const { return position_; }
 
  private:
   gfx::Point position_;
 
   DISALLOW_COPY_AND_ASSIGN(GestureTrackPositionDelegate);
 };
 
-base::TimeDelta getTime() {
+base::TimeTicks getTime() {
   return ui::EventTimeForNow();
 }
 
 class SelfEventHandlingWindowDelegate : public TestWindowDelegate {
  public:
   SelfEventHandlingWindowDelegate() {}
 
   bool ShouldDescendIntoChildForEventHandling(
       Window* child,
       const gfx::Point& location) override {
@@ skipping 623 matching lines @@
   EXPECT_EQ(0, delegate1.gesture_event_count());
   EXPECT_EQ(0, delegate1.touch_event_count());
   EXPECT_EQ(0, delegate2.gesture_event_count());
   EXPECT_EQ(0, delegate2.touch_event_count());
 }
 
 TEST_F(WindowTest, TouchCaptureDoesntCancelCapturedTouches) {
   CaptureWindowDelegateImpl delegate;
   std::unique_ptr<Window> window(CreateTestWindowWithDelegate(
       &delegate, 0, gfx::Rect(0, 0, 50, 50), root_window()));
-  base::TimeDelta time = getTime();
+  base::TimeTicks time = getTime();
   const int kTimeDelta = 100;
 
   ui::TouchEvent press(
       ui::ET_TOUCH_PRESSED, gfx::Point(10, 10), 0, time);
   DispatchEventUsingWindowDispatcher(&press);
 
   // We will get both GESTURE_BEGIN and GESTURE_TAP_DOWN.
   EXPECT_EQ(2, delegate.gesture_event_count());
   EXPECT_EQ(1, delegate.touch_event_count());
   delegate.ResetCounts();
@@ skipping 2032 matching lines @@
 
   EXPECT_TRUE(animator.get());
   EXPECT_FALSE(animator->is_animating());
   EXPECT_TRUE(observer.animation_completed());
   EXPECT_FALSE(observer.animation_aborted());
   animator->RemoveObserver(&observer);
 }
 
 }  // namespace test
 }  // namespace aura