Handle direction control in compositor Animations

Source/core/core.gypi

 {
     'includes': [
       'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/Animation.idl',
             'animation/AnimationEffect.idl',
             'animation/AnimationPlayer.idl',
@@ skipping 3412 matching lines @@
             'animation/AnimationPlayerTest.cpp',
             'animation/AnimationNodeTest.cpp',
             'animation/AnimationStackTest.cpp',
             'animation/AnimationTest.cpp',
             'animation/AnimationTestHelper.cpp',
             'animation/AnimationTestHelper.h',
             'animation/AnimationTimelineTest.cpp',
             'animation/AnimationTranslationUtilTest.cpp',
             'animation/CompositorAnimationsTest.cpp',
             'animation/CompositorAnimationsTestHelper.h',
-            'animation/CompositorAnimationsTimingFunctionReverserTest.cpp',
             'animation/EffectInputTest.cpp',
             'animation/InterpolableValueTest.cpp',
             'animation/InterpolationEffectTest.cpp',
             'animation/KeyframeEffectModelTest.cpp',
             'animation/TimingCalculationsTest.cpp',
             'animation/TimingInputTest.cpp',
             'animation/DeferredLegacyStyleInterpolationTest.cpp',
             'animation/LengthStyleInterpolationTest.cpp',
             'clipboard/DataObjectTest.cpp',
             'css/AffectedByFocusTest.cpp',
@@ skipping 57 matching lines @@
             'rendering/shapes/BoxShapeTest.cpp',
             'rendering/style/OutlineValueTest.cpp',
             'testing/PrivateScriptTestTest.cpp',
             'streams/ReadableStreamTest.cpp',
             'testing/UnitTestHelpers.cpp',
             'testing/UnitTestHelpers.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }