Removed usage of RefPtr::Release in unit tests

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

 // Copyright 2017 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/ElementAnimation.h"
 #include "core/css/PropertyDescriptor.h"
 #include "core/css/PropertyRegistration.h"
 #include "core/frame/WebLocalFrameBase.h"
 #include "core/page/Page.h"
 #include "core/testing/sim/SimCompositor.h"
@@ skipping 48 matching lines @@
   // target.style.setProperty('--x', '100%');
   target->style()->setProperty("--x", "100%", g_empty_string, exception_state);
   EXPECT_FALSE(exception_state.HadException());
 
   // target.animate({'--x': '100%'}, 1000);
   RefPtr<StringKeyframe> keyframe = StringKeyframe::Create();
   keyframe->SetCSSPropertyValue("--x", GetDocument().GetPropertyRegistry(),
                                 "100%",
                                 GetDocument().ElementSheet().Contents());
   StringKeyframeVector keyframes;
-  keyframes.push_back(keyframe.Release());
+  keyframes.push_back(std::move(keyframe));
   Timing timing;
   timing.iteration_duration = 1;  // Seconds.
   ElementAnimation::animateInternal(
       *target, StringKeyframeEffectModel::Create(keyframes), timing);
 
   // This sets the baseComputedStyle on the animation exit frame.
   Compositor().BeginFrame(1);
   Compositor().BeginFrame(1);
 
   // target.style.setProperty('--x', '0%');
   target->style()->setProperty("--x", "0%", g_empty_string, exception_state);
   EXPECT_FALSE(exception_state.HadException());
 
   // target.animate({'--x': '100%'}, 1000);
   keyframe = StringKeyframe::Create();
   keyframe->SetCSSPropertyValue("--x", GetDocument().GetPropertyRegistry(),
                                 "100%",
                                 GetDocument().ElementSheet().Contents());
   keyframes.clear();
-  keyframes.push_back(keyframe.Release());
+  keyframes.push_back(std::move(keyframe));
   timing = Timing::Defaults();
   timing.iteration_duration = 1;  // Seconds.
   ElementAnimation::animateInternal(
       *target, StringKeyframeEffectModel::Create(keyframes), timing);
 
   // This (previously) would not clear the existing baseComputedStyle and would
   // crash on the equality assertion in the exit frame when it tried to update
   // it.
   Compositor().BeginFrame(1);
   Compositor().BeginFrame(1);
 }
 
 }  // namespace blink