Replaced RefPtr::release with std::move in Source/core.

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 96c6330922622547957f61aed3604eec5624cb34..a0f9ed975f57b310d2d8bcc7f2d74408bec67bfc 100644
--- a/third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp
+++ b/third_party/WebKit/Source/core/animation/InvalidatableInterpolation.cpp
@@ -46,7 +46,7 @@ InvalidatableInterpolation::maybeConvertPairwise(
       return PairwisePrimitiveInterpolation::create(
           *interpolationType, std::move(result.startInterpolableValue),
           std::move(result.endInterpolableValue),
-          result.nonInterpolableValue.release());
+          std::move(result.nonInterpolableValue));
     }
   }
   return nullptr;
@@ -68,10 +68,11 @@ InvalidatableInterpolation::convertSingleKeyframe(
         keyframe, environment, underlyingValueOwner.value(),
         conversionCheckers);
     addConversionCheckers(*interpolationType, conversionCheckers);
-    if (result)
+    if (result) {
       return TypedInterpolationValue::create(
           *interpolationType, std::move(result.interpolableValue),
-          result.nonInterpolableValue.release());
+          std::move(result.nonInterpolableValue));
+    }
   }
   DCHECK(keyframe.isNeutral());
   return nullptr;
@@ -92,10 +93,11 @@ InvalidatableInterpolation::maybeConvertUnderlyingValue(
   for (const auto& interpolationType : *m_interpolationTypes) {
     InterpolationValue result =
         interpolationType->maybeConvertUnderlyingValue(environment);
-    if (result)
+    if (result) {
       return TypedInterpolationValue::create(
           *interpolationType, std::move(result.interpolableValue),
-          result.nonInterpolableValue.release());
+          std::move(result.nonInterpolableValue));
+    }
   }
   return nullptr;
 }