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

chrome/browser/content_settings/content_settings_mock_provider.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_MOCK_PROVIDER_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_MOCK_PROVIDER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "components/content_settings/core/browser/content_settings_observable_provider.h"
 #include "components/content_settings/core/browser/content_settings_origin_identifier_value_map.h"
 #include "components/content_settings/core/common/content_settings_pattern.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 
 namespace content_settings {
 
 // The class MockProvider is a mock for a non default content settings provider.
 class MockProvider : public ObservableProvider {
  public:
   MockProvider();
   explicit MockProvider(bool read_only);
-  virtual ~MockProvider();
+  ~MockProvider() override;
 
-  virtual RuleIterator* GetRuleIterator(
-      ContentSettingsType content_type,
-      const ResourceIdentifier& resource_identifier,
-      bool incognito) const override;
+  RuleIterator* GetRuleIterator(ContentSettingsType content_type,
+                                const ResourceIdentifier& resource_identifier,
+                                bool incognito) const override;
 
   // The MockProvider is only able to store one content setting. So every time
   // this method is called the previously set content settings is overwritten.
-  virtual bool SetWebsiteSetting(
-      const ContentSettingsPattern& requesting_url_pattern,
-      const ContentSettingsPattern& embedding_url_pattern,
-      ContentSettingsType content_type,
-      const ResourceIdentifier& resource_identifier,
-      base::Value* value) override;
+  bool SetWebsiteSetting(const ContentSettingsPattern& requesting_url_pattern,
+                         const ContentSettingsPattern& embedding_url_pattern,
+                         ContentSettingsType content_type,
+                         const ResourceIdentifier& resource_identifier,
+                         base::Value* value) override;
 
-  virtual void ClearAllContentSettingsRules(
-      ContentSettingsType content_type) override {}
+  void ClearAllContentSettingsRules(ContentSettingsType content_type) override {
+  }
 
-  virtual void ShutdownOnUIThread() override;
+  void ShutdownOnUIThread() override;
 
   void set_read_only(bool read_only) {
     read_only_ = read_only;
   }
 
   bool read_only() const {
     return read_only_;
   }
 
  private:
   OriginIdentifierValueMap value_map_;
   bool read_only_;
 
   DISALLOW_COPY_AND_ASSIGN(MockProvider);
 };
 
 }  // namespace content_settings
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_MOCK_PROVIDER_H_