Migrate WTF::Vector::append() to ::push_back() [part 2 of N]

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"
 #include <memory>
@@ skipping 64 matching lines @@
   }
   DCHECK(keyframe.isNeutral());
   return nullptr;
 }
 
 void InvalidatableInterpolation::addConversionCheckers(
     const InterpolationType& type,
     ConversionCheckers& conversionCheckers) const {
   for (size_t i = 0; i < conversionCheckers.size(); i++) {
     conversionCheckers[i]->setType(type);
-    m_conversionCheckers.append(std::move(conversionCheckers[i]));
+    m_conversionCheckers.push_back(std::move(conversionCheckers[i]));
   }
 }
 
 std::unique_ptr<TypedInterpolationValue>
 InvalidatableInterpolation::maybeConvertUnderlyingValue(
     const InterpolationEnvironment& environment) const {
   for (const auto& interpolationType : *m_interpolationTypes) {
     InterpolationValue result =
         interpolationType->maybeConvertUnderlyingValue(environment);
     if (result)
@@ skipping 177 matching lines @@
                                      currentInterpolation.m_currentFraction);
   }
 
   if (shouldApply && underlyingValueOwner)
     underlyingValueOwner.type().apply(
         *underlyingValueOwner.value().interpolableValue,
         underlyingValueOwner.value().nonInterpolableValue.get(), environment);
 }
 
 }  // namespace blink