Fix virtual/override/final usage in Source/core/html/.

Source/core/html/HTMLTextFormControlElementTest.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/html/HTMLTextFormControlElement.h"
 
 #include "core/dom/Position.h"
 #include "core/dom/Text.h"
 #include "core/editing/FrameSelection.h"
@@ skipping 33 matching lines @@
 
     RefPtrWillBePersistent<HTMLDocument> m_document;
     RefPtrWillBePersistent<HTMLTextFormControlElement> m_textControl;
     RefPtrWillBePersistent<HTMLInputElement> m_input;
 };
 
 class DummyTextCheckerClient : public EmptyTextCheckerClient {
 public:
     ~DummyTextCheckerClient() { }
 
-    virtual bool shouldEraseMarkersAfterChangeSelection(TextCheckingType) const override { return false; }
+    bool shouldEraseMarkersAfterChangeSelection(TextCheckingType) const override { return false; }
 };
 
 class DummySpellCheckerClient : public EmptySpellCheckerClient {
 public:
     virtual ~DummySpellCheckerClient() { }
 
-    virtual bool isContinuousSpellCheckingEnabled() override { return true; }
-    virtual bool isGrammarCheckingEnabled() override { return true; }
+    bool isContinuousSpellCheckingEnabled() override { return true; }
+    bool isGrammarCheckingEnabled() override { return true; }
 
-    virtual TextCheckerClient& textChecker() override { return m_dummyTextCheckerClient; }
+    TextCheckerClient& textChecker() override { return m_dummyTextCheckerClient; }
 
 private:
     DummyTextCheckerClient m_dummyTextCheckerClient;
 };
 
 void HTMLTextFormControlElementTest::SetUp()
 {
     Page::PageClients pageClients;
     fillWithEmptyClients(pageClients);
     m_spellCheckerClient = adoptPtr(new DummySpellCheckerClient);
@@ skipping 142 matching lines @@
     ASSERT_EQ(3, input->selectionStart());
 
     OwnPtrWillBePersistent<SpellChecker> spellChecker(SpellChecker::create(page().frame()));
     forceLayoutFlag();
     int startCount = layoutCount();
     spellChecker->respondToChangedSelection(oldSelection, FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle);
     EXPECT_EQ(startCount, layoutCount());
 }
 
 } // namespace blink