gfx: Add FrameTime and DisplayTime classes

ui/gfx/animation/multi_animation_unittest.cc

 // Copyright (c) 2011 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/multi_animation.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/animation/animation_container_element.h"
 
 namespace gfx {
 
 TEST(MultiAnimationTest, Basic) {
   // Create a MultiAnimation with two parts.
   MultiAnimation::Parts parts;
   parts.push_back(MultiAnimation::Part(100, Tween::LINEAR));
   parts.push_back(MultiAnimation::Part(100, Tween::EASE_OUT));
 
   MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
   AnimationContainerElement* as_element =
       static_cast<AnimationContainerElement*>(&animation);
-  as_element->SetStartTime(base::TimeTicks());
+  as_element->SetStartTime(gfx::FrameTime());
 
   // Step to 50, which is half way through the first part.
-  as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(50));
+  as_element->Step(gfx::FrameTime() + base::TimeDelta::FromMilliseconds(50));
   EXPECT_EQ(.5, animation.GetCurrentValue());
 
   // Step to 120, which is 20% through the second part.
-  as_element->Step(base::TimeTicks() +
+  as_element->Step(gfx::FrameTime() +
                    base::TimeDelta::FromMilliseconds(120));
   EXPECT_DOUBLE_EQ(Tween::CalculateValue(Tween::EASE_OUT, .2),
                    animation.GetCurrentValue());
 
   // Step to 320, which is 20% through the second part.
-  as_element->Step(base::TimeTicks() +
+  as_element->Step(gfx::FrameTime() +
                    base::TimeDelta::FromMilliseconds(320));
   EXPECT_DOUBLE_EQ(Tween::CalculateValue(Tween::EASE_OUT, .2),
                    animation.GetCurrentValue());
 }
 
 TEST(MultiAnimationTest, DifferingStartAndEnd) {
   // Create a MultiAnimation with two parts.
   MultiAnimation::Parts parts;
   parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
   parts[0].start_time_ms = 100;
   parts[0].end_time_ms = 400;
 
   MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
   AnimationContainerElement* as_element =
       static_cast<AnimationContainerElement*>(&animation);
-  as_element->SetStartTime(base::TimeTicks());
+  as_element->SetStartTime(gfx::FrameTime());
 
   // Step to 0. Because the start_time is 100, this should be 100ms into the
   // animation
-  as_element->Step(base::TimeTicks());
+  as_element->Step(gfx::FrameTime());
   EXPECT_EQ(.25, animation.GetCurrentValue());
 
   // Step to 100, which is effectively 200ms into the animation.
-  as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(100));
+  as_element->Step(gfx::FrameTime() + base::TimeDelta::FromMilliseconds(100));
   EXPECT_EQ(.5, animation.GetCurrentValue());
 }
 
 // Makes sure multi-animation stops if cycles is false.
 TEST(MultiAnimationTest, DontCycle) {
   MultiAnimation::Parts parts;
   parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
   MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
   AnimationContainerElement* as_element =
       static_cast<AnimationContainerElement*>(&animation);
-  as_element->SetStartTime(base::TimeTicks());
+  as_element->SetStartTime(gfx::FrameTime());
   animation.set_continuous(false);
 
   // Step to 300, which is greater than the cycle time.
-  as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(300));
+  as_element->Step(gfx::FrameTime() + base::TimeDelta::FromMilliseconds(300));
   EXPECT_EQ(1.0, animation.GetCurrentValue());
   EXPECT_FALSE(animation.is_animating());
 }
 
 // Makes sure multi-animation cycles correctly.
 TEST(MultiAnimationTest, Cycle) {
   MultiAnimation::Parts parts;
   parts.push_back(MultiAnimation::Part(200, Tween::LINEAR));
   MultiAnimation animation(parts, MultiAnimation::GetDefaultTimerInterval());
   AnimationContainerElement* as_element =
       static_cast<AnimationContainerElement*>(&animation);
-  as_element->SetStartTime(base::TimeTicks());
+  as_element->SetStartTime(gfx::FrameTime());
 
   // Step to 300, which is greater than the cycle time.
-  as_element->Step(base::TimeTicks() + base::TimeDelta::FromMilliseconds(300));
+  as_element->Step(gfx::FrameTime() + base::TimeDelta::FromMilliseconds(300));
   EXPECT_EQ(.5, animation.GetCurrentValue());
 }
 
 }  // namespace gfx