Define step timing function for the cc animation framework.

Source/core/animation/CompositorAnimationsTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 437 matching lines @@
     m_timing.direction = Timing::PlaybackDirectionAlternateReverse;
     m_timing.iterationCount = 4.0;
     m_timing.iterationDuration = 5.0;
     m_timing.startDelay = -11.0;
     EXPECT_TRUE(convertTimingForCompositor(m_timing, m_compositorTiming));
     EXPECT_DOUBLE_EQ(11.0, m_compositorTiming.scaledTimeOffset);
     EXPECT_EQ(4, m_compositorTiming.adjustedIterationCount);
     EXPECT_EQ(m_compositorTiming.direction, Timing::PlaybackDirectionAlternateReverse);
 }
 
-TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingTimingFunctionPassThru)
-{
-    m_timing.timingFunction = m_stepTimingFunction;
-    EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
-}
-
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionLinear)
 {
     m_timing.timingFunction = m_linearTimingFunction;
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 }
 
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionCubic)
 {
     m_timing.timingFunction = m_cubicEaseTimingFunction;
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
     EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 
     m_timing.timingFunction = m_cubicCustomTimingFunction;
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
     EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 }
 
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionSteps)
 {
     m_timing.timingFunction = m_stepTimingFunction;
-    EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
+    EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
     EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 }
 
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionChainedLinear)
 {
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 }
 
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorNonLinearTimingFunctionOnFirstFrame)
@@ skipping 28 matching lines @@
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionMixedGood)
 {
     (*m_keyframeVector5)[0]->setEasing(m_linearTimingFunction.get());
     (*m_keyframeVector5)[1]->setEasing(m_cubicEaseTimingFunction.get());
     (*m_keyframeVector5)[2]->setEasing(m_cubicEaseTimingFunction.get());
     (*m_keyframeVector5)[3]->setEasing(m_linearTimingFunction.get());
     m_keyframeAnimationEffect5 = AnimatableValueKeyframeEffectModel::create(*m_keyframeVector5);
     EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 }
 
-TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionWithStepNotOkay)
+TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositorTimingFunctionWithStepOkay)
 {
     (*m_keyframeVector2)[0]->setEasing(m_stepTimingFunction.get());
     m_keyframeAnimationEffect2 = AnimatableValueKeyframeEffectModel::create(*m_keyframeVector2);
-    EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
+    EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect2.get()));
 
     (*m_keyframeVector5)[0]->setEasing(m_stepTimingFunction.get());
     (*m_keyframeVector5)[1]->setEasing(m_linearTimingFunction.get());
     (*m_keyframeVector5)[2]->setEasing(m_cubicEaseTimingFunction.get());
     (*m_keyframeVector5)[3]->setEasing(m_linearTimingFunction.get());
     m_keyframeAnimationEffect5 = AnimatableValueKeyframeEffectModel::create(*m_keyframeVector5);
-    EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
+    EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 
     (*m_keyframeVector5)[0]->setEasing(m_linearTimingFunction.get());
     (*m_keyframeVector5)[1]->setEasing(m_stepTimingFunction.get());
     (*m_keyframeVector5)[2]->setEasing(m_cubicEaseTimingFunction.get());
     (*m_keyframeVector5)[3]->setEasing(m_linearTimingFunction.get());
     m_keyframeAnimationEffect5 = AnimatableValueKeyframeEffectModel::create(*m_keyframeVector5);
-    EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
+    EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 
     (*m_keyframeVector5)[0]->setEasing(m_linearTimingFunction.get());
     (*m_keyframeVector5)[1]->setEasing(m_cubicEaseTimingFunction.get());
     (*m_keyframeVector5)[2]->setEasing(m_cubicEaseTimingFunction.get());
     (*m_keyframeVector5)[3]->setEasing(m_stepTimingFunction.get());
     m_keyframeAnimationEffect5 = AnimatableValueKeyframeEffectModel::create(*m_keyframeVector5);
-    EXPECT_FALSE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
+    EXPECT_TRUE(isCandidateForAnimationOnCompositor(m_timing, *m_keyframeAnimationEffect5.get()));
 }
 
 TEST_F(AnimationCompositorAnimationsTest, isCandidateForAnimationOnCompositor)
 {
     Timing linearTiming(createCompositableTiming());
 
     AnimatableValueKeyframeVector basicFramesVector;
     basicFramesVector.append(createDefaultKeyframe(CSSPropertyOpacity, AnimationEffect::CompositeReplace, 0.0).get());
     basicFramesVector.append(createDefaultKeyframe(CSSPropertyOpacity, AnimationEffect::CompositeReplace, 1.0).get());
 
@@ skipping 529 matching lines @@
 
     // Go!
     setCompositorForTesting(mockCompositor);
     Vector<OwnPtr<WebCompositorAnimation> > result;
     getAnimationOnCompositor(m_timing, *effect.get(), result);
     EXPECT_EQ(1U, result.size());
     result[0].clear();
 }
 
 } // namespace blink