Standardize usage of virtual/override/final in chrome/renderer/

chrome/renderer/spellchecker/spellcheck.cc

Index: chrome/renderer/spellchecker/spellcheck.cc
diff --git a/chrome/renderer/spellchecker/spellcheck.cc b/chrome/renderer/spellchecker/spellcheck.cc
index 93a5b089f32e9d797a3a687d005424d8c8c363e3..e8e283a0bec76c02dd91554c1e1362b32b065ab6 100644
--- a/chrome/renderer/spellchecker/spellcheck.cc
+++ b/chrome/renderer/spellchecker/spellcheck.cc
@@ -31,7 +31,7 @@ namespace {
 class UpdateSpellcheckEnabled : public content::RenderViewVisitor {
  public:
   explicit UpdateSpellcheckEnabled(bool enabled) : enabled_(enabled) {}
-  virtual bool Visit(content::RenderView* render_view) override;
+  bool Visit(content::RenderView* render_view) override;
 
  private:
   bool enabled_;  // New spellcheck-enabled state.
@@ -48,9 +48,9 @@ bool UpdateSpellcheckEnabled::Visit(content::RenderView* render_view) {
 class DocumentMarkersCollector : public content::RenderViewVisitor {
  public:
   DocumentMarkersCollector() {}
-  virtual ~DocumentMarkersCollector() {}
+  ~DocumentMarkersCollector() override {}
   const std::vector<uint32>& markers() const { return markers_; }
-  virtual bool Visit(content::RenderView* render_view) override;
+  bool Visit(content::RenderView* render_view) override;
 
  private:
   std::vector<uint32> markers_;
@@ -71,8 +71,8 @@ bool DocumentMarkersCollector::Visit(content::RenderView* render_view) {
 class DocumentMarkersRemover : public content::RenderViewVisitor {
  public:
   explicit DocumentMarkersRemover(const std::vector<std::string>& words);
-  virtual ~DocumentMarkersRemover() override {}
-  virtual bool Visit(content::RenderView* render_view) override;
+  ~DocumentMarkersRemover() override {}
+  bool Visit(content::RenderView* render_view) override;
 
  private:
   WebVector<WebString> words_;