Add more missing closing namespace comments.

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

 // Copyright 2014 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/AnimationStack.h"
 
 #include "core/animation/AnimationClock.h"
 #include "core/animation/AnimationTimeline.h"
 #include "core/animation/ElementAnimations.h"
 #include "core/animation/KeyframeEffectModel.h"
@@ skipping 114 matching lines @@
     Animation* animation = play(makeKeyframeEffect(makeEffectModel(CSSPropertyFontSize, AnimatableDouble::create(1))), 10);
     ActiveInterpolationsMap result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffect::DefaultPriority);
     EXPECT_EQ(1u, result.size());
     EXPECT_TRUE(interpolationValue(result, CSSPropertyFontSize)->equals(AnimatableDouble::create(1).get()));
 
     animation->setEffect(0);
     result = AnimationStack::activeInterpolations(&element->elementAnimations()->animationStack(), 0, 0, KeyframeEffect::DefaultPriority);
     EXPECT_EQ(0u, result.size());
 }
 
-}
+} // namespace blink