Standardize usage of virtual/override/final in components/

components/dom_distiller/core/distilled_page_prefs_unittests.cc

 // 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 "components/dom_distiller/core/distilled_page_prefs.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "components/pref_registry/testing_pref_service_syncable.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace dom_distiller {
 
 namespace {
 
 class TestingObserver : public DistilledPagePrefs::Observer {
  public:
   TestingObserver()
       : font_(DistilledPagePrefs::SANS_SERIF),
         theme_(DistilledPagePrefs::LIGHT) {}
 
-  virtual void OnChangeFontFamily(
-      DistilledPagePrefs::FontFamily new_font) override {
+  void OnChangeFontFamily(DistilledPagePrefs::FontFamily new_font) override {
     font_ = new_font;
   }
 
   DistilledPagePrefs::FontFamily GetFontFamily() { return font_; }
 
-  virtual void OnChangeTheme(DistilledPagePrefs::Theme new_theme) override {
+  void OnChangeTheme(DistilledPagePrefs::Theme new_theme) override {
     theme_ = new_theme;
   }
 
   DistilledPagePrefs::Theme GetTheme() { return theme_; }
 
  private:
   DistilledPagePrefs::FontFamily font_;
   DistilledPagePrefs::Theme theme_;
 };
 
@@ skipping 68 matching lines @@
   EXPECT_EQ(DistilledPagePrefs::SEPIA, obs2.GetTheme());
   distilled_page_prefs_->RemoveObserver(&obs);
   distilled_page_prefs_->SetTheme(DistilledPagePrefs::LIGHT);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(DistilledPagePrefs::SEPIA, obs.GetTheme());
   EXPECT_EQ(DistilledPagePrefs::LIGHT, obs2.GetTheme());
   distilled_page_prefs_->RemoveObserver(&obs2);
 }
 
 }  // namespace dom_distiller