Revert of Make InvalidatableInterpolation's InterpolationTypes decided at effect application time

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

Index: third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp
diff --git a/third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp b/third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp
index 6fd9868ab357169aca0193669239b3f3b4317718..e480166ee7911ad9307bbc574689bfd142d7af45 100644
--- a/third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp
+++ b/third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp
@@ -32,7 +32,7 @@
     const InterpolationEnvironment& environment,
     const UnderlyingValueOwner& underlyingValueOwner) const {
   DCHECK(m_currentFraction != 0 && m_currentFraction != 1);
-  for (const auto& interpolationType : *m_interpolationTypes) {
+  for (const auto& interpolationType : m_interpolationTypes) {
     if ((m_startKeyframe->isNeutral() || m_endKeyframe->isNeutral()) &&
         (!underlyingValueOwner ||
          underlyingValueOwner.type() != *interpolationType))
@@ -59,7 +59,7 @@
     const UnderlyingValueOwner& underlyingValueOwner) const {
   if (keyframe.isNeutral() && !underlyingValueOwner)
     return nullptr;
-  for (const auto& interpolationType : *m_interpolationTypes) {
+  for (const auto& interpolationType : m_interpolationTypes) {
     if (keyframe.isNeutral() &&
         underlyingValueOwner.type() != *interpolationType)
       continue;
@@ -89,7 +89,7 @@
 std::unique_ptr<TypedInterpolationValue>
 InvalidatableInterpolation::maybeConvertUnderlyingValue(
     const InterpolationEnvironment& environment) const {
-  for (const auto& interpolationType : *m_interpolationTypes) {
+  for (const auto& interpolationType : m_interpolationTypes) {
     InterpolationValue result =
         interpolationType->maybeConvertUnderlyingValue(environment);
     if (result)
@@ -144,9 +144,6 @@
     const InterpolationEnvironment& environment,
     const UnderlyingValueOwner& underlyingValueOwner) const {
   DCHECK(!std::isnan(m_currentFraction));
-  DCHECK(m_interpolationTypes &&
-         m_interpolationTypesVersion ==
-             environment.interpolationTypesMap().version());
   if (isConversionCacheValid(environment, underlyingValueOwner))
     return m_cachedValue.get();
   clearConversionCache();
@@ -175,18 +172,6 @@
   return m_cachedValue.get();
 }
 
-void InvalidatableInterpolation::ensureValidInterpolationTypes(
-    const InterpolationEnvironment& environment) const {
-  const InterpolationTypesMap& map = environment.interpolationTypesMap();
-  if (m_interpolationTypesVersion != map.version()) {
-    m_interpolationTypes = nullptr;
-  }
-  if (!m_interpolationTypes) {
-    m_interpolationTypes = &map.get(m_property);
-    clearConversionCache();
-  }
-}
-
 void InvalidatableInterpolation::setFlagIfInheritUsed(
     InterpolationEnvironment& environment) const {
   if (!m_property.isCSSProperty() && !m_property.isPresentationAttribute())
@@ -223,7 +208,6 @@
   UnderlyingValueOwner underlyingValueOwner;
   const InvalidatableInterpolation& firstInterpolation =
       toInvalidatableInterpolation(*interpolations.at(startingIndex));
-  firstInterpolation.ensureValidInterpolationTypes(environment);
   if (firstInterpolation.dependsOnUnderlyingValue()) {
     underlyingValueOwner.set(
         firstInterpolation.maybeConvertUnderlyingValue(environment));
@@ -251,7 +235,6 @@
     const InvalidatableInterpolation& currentInterpolation =
         toInvalidatableInterpolation(*interpolations.at(i));
     DCHECK(currentInterpolation.dependsOnUnderlyingValue());
-    currentInterpolation.ensureValidInterpolationTypes(environment);
     const TypedInterpolationValue* currentValue =
         currentInterpolation.ensureValidConversion(environment,
                                                    underlyingValueOwner);