Web Animations: Remove WebAnimations runtime feature in favor of WebAnimationsCSS

Source/core/animation/CompositorAnimationsTimingFunctionReverserTest.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 32 matching lines @@
 // FIXME: Remove once https://codereview.chromium.org/50603011/ lands.
 #define EXPECT_REFV_EQ(a, b) EXPECT_EQ(*(a.get()), *(b.get()))
 #define EXPECT_REFV_NE(a, b) EXPECT_NE(*(a.get()), *(b.get()))
 
 namespace {
 
 using namespace WebCore;
 
 class AnimationCompositorAnimationsTimingFunctionReverserTest : public ::testing::Test {
 protected:
-    bool m_enabled;
-
-    virtual void SetUp()
-    {
-        m_enabled = RuntimeEnabledFeatures::webAnimationsEnabled();
-        // Needed for ChainedTimingFunction support
-        RuntimeEnabledFeatures::setWebAnimationsEnabled(true);
-    }
-
-    virtual void TearDown()
-    {
-        RuntimeEnabledFeatures::setWebAnimationsEnabled(m_enabled);
-    }
 
 public:
     PassRefPtr<TimingFunction> reverse(const RefPtr<TimingFunction>& timefunc)
     {
         return CompositorAnimationsTimingFunctionReverser::reverse(timefunc.get());
     }
 };
 
 TEST_F(AnimationCompositorAnimationsTimingFunctionReverserTest, LinearReverse)
 {
@@ skipping 35 matching lines @@
     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