Web Animations API: Implement step-middle and steps(x, middle) timing functions.

Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.cpp

Index: Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.cpp
diff --git a/Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.cpp b/Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.cpp
index 102f4efdb69db79a8bd4d722fcfaeaf1b3412f91..78c69899b5eacec25b7d0e93515fceb5a75c41cb 100644
--- a/Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.cpp
+++ b/Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.cpp
@@ -32,8 +32,6 @@
 
 #include "core/animation/CompositorAnimations.h"
 
-#include "platform/animation/TimingFunctionTestHelper.h"
-
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
@@ -84,24 +82,4 @@ TEST_F(AnimationCompositorAnimationsTimingFunctionReverserTest, CubicReverse)
     EXPECT_REFV_EQ(cubicEaseTimingReversed, reverse(cubicEaseTiming));
 }
 
-TEST_F(AnimationCompositorAnimationsTimingFunctionReverserTest, ChainedReverse)
-{
-    RefPtr<TimingFunction> linearTiming = LinearTimingFunction::create();
-    RefPtr<ChainedTimingFunction> chainedLinearSingle = ChainedTimingFunction::create();
-    chainedLinearSingle->appendSegment(1.0, linearTiming.get());
-    EXPECT_REFV_EQ(chainedLinearSingle, reverse(chainedLinearSingle));
-
-    RefPtr<TimingFunction> cubicEaseInTiming = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseIn);
-    RefPtr<TimingFunction> cubicEaseOutTiming = CubicBezierTimingFunction::preset(CubicBezierTimingFunction::EaseOut);
-
-    RefPtr<ChainedTimingFunction> chainedMixed = ChainedTimingFunction::create();
-    chainedMixed->appendSegment(0.75, chainedLinearSingle.get());
-    chainedMixed->appendSegment(1.0, cubicEaseInTiming.get());
-
-    RefPtr<ChainedTimingFunction> chainedMixedReversed = ChainedTimingFunction::create();
-    chainedMixedReversed->appendSegment(0.25, cubicEaseOutTiming.get());
-    chainedMixedReversed->appendSegment(1.0, chainedLinearSingle.get());
-    EXPECT_REFV_EQ(chainedMixedReversed, reverse(chainedMixed));
-}
-
 } // namespace