Oilpan: fix build after r189490 (a22afce3).

Source/core/animation/Interpolation.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/animation/Interpolation.h"
 
 namespace blink {
 
-DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(Interpolation);
-
 namespace {
 
 bool typesMatch(const InterpolableValue* start, const InterpolableValue* end)
 {
     if (start->isNumber())
         return end->isNumber();
     if (start->isBool())
         return end->isBool();
     if (start->isAnimatableValue())
         return end->isAnimatableValue();
@@ skipping 15 matching lines @@
 Interpolation::Interpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end)
     : m_start(start)
     , m_end(end)
     , m_cachedFraction(0)
     , m_cachedIteration(0)
     , m_cachedValue(m_start->clone())
 {
     RELEASE_ASSERT(typesMatch(m_start.get(), m_end.get()));
 }
 
+Interpolation::~Interpolation()
+{
+}
+
 void Interpolation::interpolate(int iteration, double fraction) const
 {
     if (m_cachedFraction != fraction || m_cachedIteration != iteration) {
         m_start->interpolate(*m_end, fraction, *m_cachedValue);
         m_cachedIteration = iteration;
         m_cachedFraction = fraction;
     }
 }
 
 void Interpolation::trace(Visitor* visitor)
 {
     visitor->trace(m_start);
     visitor->trace(m_end);
     visitor->trace(m_cachedValue);
 }
 
 }