Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/[css|rendering|clipboard]

Source/core/css/MediaQueryListTest.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 "config.h"
 #include "core/css/MediaQueryList.h"
 
 #include "core/css/MediaList.h"
 #include "core/css/MediaQueryListListener.h"
 #include "core/css/MediaQueryMatcher.h"
 #include "core/dom/Document.h"
 #include <gtest/gtest.h>
 
 namespace {
 
 class TestListener : public blink::MediaQueryListListener {
 public:
-    virtual void notifyMediaQueryChanged() OVERRIDE { }
+    virtual void notifyMediaQueryChanged() override { }
 };
 
 }
 
 namespace blink {
 
 TEST(MediaQueryListTest, CrashInStop)
 {
     RefPtrWillBeRawPtr<Document> document = Document::create();
     RefPtrWillBeRawPtr<MediaQueryList> list = MediaQueryList::create(document.get(), MediaQueryMatcher::create(*document), MediaQuerySet::create());
     list->addListener(adoptRefWillBeNoop(new TestListener()));
     list->stop();
     // This test passes if it's not crashed.
 }
 
 }