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

chrome/browser/extensions/api/debugger/debugger_api.cc

Index: chrome/browser/extensions/api/debugger/debugger_api.cc
diff --git a/chrome/browser/extensions/api/debugger/debugger_api.cc b/chrome/browser/extensions/api/debugger/debugger_api.cc
index bd1489e53b61b36d1fe1a2142019edf5cc95308b..4745a24bf55b6dd211e89e2dd89983b6d766ecca 100644
--- a/chrome/browser/extensions/api/debugger/debugger_api.cc
+++ b/chrome/browser/extensions/api/debugger/debugger_api.cc
@@ -84,7 +84,7 @@ class ExtensionDevToolsClientHost : public content::DevToolsAgentHostClient,
                               const Debuggee& debuggee,
                               infobars::InfoBar* infobar);
 
-  virtual ~ExtensionDevToolsClientHost();
+  ~ExtensionDevToolsClientHost() override;
 
   const std::string& extension_id() { return extension_id_; }
   DevToolsAgentHost* agent_host() { return agent_host_.get(); }
@@ -97,26 +97,23 @@ class ExtensionDevToolsClientHost : public content::DevToolsAgentHostClient,
   void MarkAsDismissed();
 
   // DevToolsAgentHostClient interface.
-  virtual void AgentHostClosed(
-      DevToolsAgentHost* agent_host,
-      bool replaced_with_another_client) override;
-  virtual void DispatchProtocolMessage(
-      DevToolsAgentHost* agent_host,
-      const std::string& message) override;
+  void AgentHostClosed(DevToolsAgentHost* agent_host,
+                       bool replaced_with_another_client) override;
+  void DispatchProtocolMessage(DevToolsAgentHost* agent_host,
+                               const std::string& message) override;
 
  private:
   void SendDetachedEvent();
 
   // content::NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
   // ExtensionRegistryObserver implementation.
-  virtual void OnExtensionUnloaded(
-      content::BrowserContext* browser_context,
-      const Extension* extension,
-      UnloadedExtensionInfo::Reason reason) override;
+  void OnExtensionUnloaded(content::BrowserContext* browser_context,
+                           const Extension* extension,
+                           UnloadedExtensionInfo::Reason reason) override;
 
   Profile* profile_;
   scoped_refptr<DevToolsAgentHost> agent_host_;
@@ -171,16 +168,15 @@ class ExtensionDevToolsInfoBarDelegate : public ConfirmInfoBarDelegate {
 
  private:
   explicit ExtensionDevToolsInfoBarDelegate(const std::string& client_name);
-  virtual ~ExtensionDevToolsInfoBarDelegate();
+  ~ExtensionDevToolsInfoBarDelegate() override;
 
   // ConfirmInfoBarDelegate:
-  virtual void InfoBarDismissed() override;
-  virtual Type GetInfoBarType() const override;
-  virtual bool ShouldExpireInternal(
-      const NavigationDetails& details) const override;
-  virtual base::string16 GetMessageText() const override;
-  virtual int GetButtons() const override;
-  virtual bool Cancel() override;
+  void InfoBarDismissed() override;
+  Type GetInfoBarType() const override;
+  bool ShouldExpireInternal(const NavigationDetails& details) const override;
+  base::string16 GetMessageText() const override;
+  int GetButtons() const override;
+  bool Cancel() override;
 
   std::string client_name_;
   ExtensionDevToolsClientHost* client_host_;