Web Animations: Remove WebAnimations runtime feature in favor of WebAnimationsCSS

Source/core/animation/CompositorAnimationsTestHelper.h

 /*
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 120 matching lines @@
         virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t length) { ASSERT_NOT_REACHED(); }
     private:
         WebCompositorSupportMock** m_compositor;
         blink::WebCompositorSupport* compositorSupport() OVERRIDE { return *m_compositor; }
     };
 
     WebCompositorSupportMock* m_mockCompositor;
     PlatformProxy m_proxyPlatform;
 
 protected:
-    bool m_enabled;
     blink::Platform* m_platform;
 
     virtual void SetUp()
     {
-        m_enabled = RuntimeEnabledFeatures::webAnimationsEnabled();
-        // Needed for ChainedTimingFunction support
-        RuntimeEnabledFeatures::setWebAnimationsEnabled(true);
-
         m_mockCompositor = 0;
         m_platform = blink::Platform::current();
         blink::Platform::initialize(&m_proxyPlatform);
     }
 
     virtual void TearDown()
     {
-        RuntimeEnabledFeatures::setWebAnimationsEnabled(m_enabled);
         blink::Platform::initialize(m_platform);
     }
 
     void setCompositorForTesting(WebCompositorSupportMock& mock)
     {
         ASSERT(!m_mockCompositor);
         m_mockCompositor = &mock;
     }
 };
 
 }
 
 #endif