Remove OwnPtr::release() calls in core/ (part 1).

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

Index: third_party/WebKit/Source/core/animation/SVGNumberOptionalNumberInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/SVGNumberOptionalNumberInterpolationType.cpp b/third_party/WebKit/Source/core/animation/SVGNumberOptionalNumberInterpolationType.cpp
index 8d874d20d52f72384208ebe20f9869d20229a2ed..b4fcff9172767b7b6218f2720a05de7b8866bb1b 100644
--- a/third_party/WebKit/Source/core/animation/SVGNumberOptionalNumberInterpolationType.cpp
+++ b/third_party/WebKit/Source/core/animation/SVGNumberOptionalNumberInterpolationType.cpp
@@ -14,7 +14,7 @@ InterpolationValue SVGNumberOptionalNumberInterpolationType::maybeConvertNeutral
     OwnPtr<InterpolableList> result = InterpolableList::create(2);
     result->set(0, InterpolableNumber::create(0));
     result->set(1, InterpolableNumber::create(0));
-    return InterpolationValue(result.release());
+    return InterpolationValue(std::move(result));
 }
 
 InterpolationValue SVGNumberOptionalNumberInterpolationType::maybeConvertSVGValue(const SVGPropertyBase& svgValue) const
@@ -26,7 +26,7 @@ InterpolationValue SVGNumberOptionalNumberInterpolationType::maybeConvertSVGValu
     OwnPtr<InterpolableList> result = InterpolableList::create(2);
     result->set(0, InterpolableNumber::create(numberOptionalNumber.firstNumber()->value()));
     result->set(1, InterpolableNumber::create(numberOptionalNumber.secondNumber()->value()));
-    return InterpolationValue(result.release());
+    return InterpolationValue(std::move(result));
 }
 
 SVGPropertyBase* SVGNumberOptionalNumberInterpolationType::appliedSVGValue(const InterpolableValue& interpolableValue, const NonInterpolableValue*) const