gfx: Add FrameTime and DisplayTime classes

ui/gfx/animation/slide_animation_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/gfx/animation/slide_animation.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/animation/test_animation_delegate.h"
 
 namespace gfx {
 
 // Class to provide access to SlideAnimation internals for testing.
 class SlideAnimation::TestApi {
  public:
   explicit TestApi(SlideAnimation* animation) : animation_(animation) {}
 
-  void SetStartTime(base::TimeTicks ticks) {
+  void SetStartTime(gfx::FrameTime ticks) {
     animation_->SetStartTime(ticks);
   }
 
-  void Step(base::TimeTicks ticks) {
+  void Step(gfx::FrameTime ticks) {
     animation_->Step(ticks);
   }
 
  private:
   SlideAnimation* animation_;
 
   DISALLOW_COPY_AND_ASSIGN(TestApi);
 };
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 28 matching lines @@
   // Duration can be set after construction.
   animation.SetSlideDuration(100);
   EXPECT_EQ(100, animation.GetSlideDuration());
 
   // Show toggles the appropriate state.
   animation.Show();
   EXPECT_TRUE(animation.IsShowing());
   EXPECT_FALSE(animation.IsClosing());
 
   // Simulate running the animation.
-  test_api.SetStartTime(base::TimeTicks());
-  test_api.Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(50));
+  test_api.SetStartTime(gfx::FrameTime());
+  test_api.Step(gfx::FrameTime() + base::TimeDelta::FromMilliseconds(50));
   EXPECT_EQ(0.5, animation.GetCurrentValue());
 
   // We can start hiding mid-way through the animation.
   animation.Hide();
   EXPECT_FALSE(animation.IsShowing());
   EXPECT_TRUE(animation.IsClosing());
 
   // Reset stops the animation.
   animation.Reset();
   EXPECT_EQ(0.0, animation.GetCurrentValue());
@@ skipping 12 matching lines @@
 
   // Delete the animation.
   animation.reset();
 
   // Make sure the delegate wasn't notified.
   EXPECT_FALSE(delegate.finished());
   EXPECT_FALSE(delegate.canceled());
 }
 
 }  // namespace gfx