Add more missing closing namespace comments.

third_party/WebKit/Source/modules/remoteplayback/HTMLMediaElementRemotePlayback.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 "modules/remoteplayback/HTMLMediaElementRemotePlayback.h"
 
 #include "core/dom/QualifiedName.h"
 #include "core/html/HTMLMediaElement.h"
 
 namespace blink {
 
 // static
 bool HTMLMediaElementRemotePlayback::fastHasAttribute(const QualifiedName& name, const HTMLMediaElement& element)
 {
     ASSERT(name == HTMLNames::disableremoteplaybackAttr);
     return element.fastHasAttribute(name);
 }
 
 // static
 void HTMLMediaElementRemotePlayback::setBooleanAttribute(const QualifiedName& name, HTMLMediaElement& element, bool value)
 {
     ASSERT(name == HTMLNames::disableremoteplaybackAttr);
     element.setBooleanAttribute(name, value);
 }
 
-}
+} // namespace blink