Make Keyframe::PropertySpecificKeyframes RefCounted

third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp

 // Copyright 2015 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 "core/animation/InvalidatableInterpolation.h"
 
 #include "core/animation/InterpolationEnvironment.h"
 #include "core/animation/StringKeyframe.h"
 #include "core/css/resolver/StyleResolverState.h"
 
@@ skipping 128 matching lines @@
     m_isCached = true;
     return m_cachedValue.get();
 }
 
 void InvalidatableInterpolation::setFlagIfInheritUsed(InterpolationEnvironment& environment) const
 {
     if (!m_property.isCSSProperty() && !m_property.isPresentationAttribute())
         return;
     if (!environment.state().parentStyle())
         return;
-    const CSSValue* startValue = toCSSPropertySpecificKeyframe(m_startKeyframe)->value();
-    const CSSValue* endValue = toCSSPropertySpecificKeyframe(m_endKeyframe)->value();
+    const CSSValue* startValue = toCSSPropertySpecificKeyframe(*m_startKeyframe).value();
+    const CSSValue* endValue = toCSSPropertySpecificKeyframe(*m_endKeyframe).value();
     if ((startValue && startValue->isInheritedValue())
         || (endValue && endValue->isInheritedValue())) {
         environment.state().parentStyle()->setHasExplicitlyInheritedProperties();
     }
 }
 
 double InvalidatableInterpolation::underlyingFraction() const
 {
     if (m_currentFraction == 0)
         return m_startKeyframe->underlyingFraction();
@@ skipping 41 matching lines @@
             underlyingValueOwner.set(currentValue);
         else
             currentValue->type().composite(underlyingValueOwner, underlyingFraction, currentValue->value());
     }
 
     if (shouldApply && underlyingValueOwner)
         underlyingValueOwner.type().apply(*underlyingValueOwner.value().interpolableValue, underlyingValueOwner.value().nonInterpolableValue.get(), environment);
 }
 
 } // namespace blink