Add DEFINE_STATIC_REF_WILL_BE_PERSISTENT macro

Source/core/animation/AnimatableStrokeDasharrayList.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 57 matching lines @@
     WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > to = toAnimatableStrokeDasharrayList(value)->m_values;
 
     // The spec states that if the sum of all values is zero, this should be
     // treated like a value of 'none', which means that a solid line is drawn.
     // Since we animate to and from values of zero, treat a value of 'none' the
     // same. If both the two and from values are 'none', we return 'none'
     // rather than '0 0'.
     if (from.isEmpty() && to.isEmpty())
         return takeConstRef(this);
     if (from.isEmpty() || to.isEmpty()) {
-#if ENABLE_OILPAN
-        DEFINE_STATIC_LOCAL(Persistent<AnimatableSVGLength>, zeroPixels, (AnimatableSVGLength::create(SVGLength::create())));
-#else
-        DEFINE_STATIC_REF(AnimatableSVGLength, zeroPixels, AnimatableSVGLength::create(SVGLength::create()).leakRef());
-#endif
+        DEFINE_STATIC_REF_WILL_BE_PERSISTENT(AnimatableSVGLength, zeroPixels, (AnimatableSVGLength::create(SVGLength::create())));
         if (from.isEmpty()) {
             from.append(zeroPixels);
             from.append(zeroPixels);
         }
         if (to.isEmpty()) {
             to.append(zeroPixels);
             to.append(zeroPixels);
         }
     }
 
     WillBeHeapVector<RefPtrWillBeMember<AnimatableValue> > interpolatedValues;
     bool success = interpolateLists(from, to, fraction, interpolatedValues);
     ASSERT_UNUSED(success, success);
     return adoptRefWillBeNoop(new AnimatableStrokeDasharrayList(interpolatedValues));
 }
 
 void AnimatableStrokeDasharrayList::trace(Visitor* visitor)
 {
     AnimatableRepeatable::trace(visitor);
 }
 
 } // namespace WebCore