Standardize usage of virtual/override/final in extensions/

extensions/renderer/user_script_injector.h

 // 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.
 
 #ifndef EXTENSIONS_RENDERER_USER_SCRIPT_INJECTOR_H_
 #define EXTENSIONS_RENDERER_USER_SCRIPT_INJECTOR_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/scoped_observer.h"
 #include "extensions/common/user_script.h"
 #include "extensions/renderer/script_injection.h"
 #include "extensions/renderer/user_script_set.h"
 
 namespace blink {
 class WebFrame;
 }
 
 namespace extensions {
 class Extension;
 
 // A ScriptInjector for UserScripts.
 class UserScriptInjector : public ScriptInjector,
                            public UserScriptSet::Observer {
  public:
   UserScriptInjector(const UserScript* user_script,
                      UserScriptSet* user_script_set,
                      bool is_declarative);
-  virtual ~UserScriptInjector();
+  ~UserScriptInjector() override;
 
  private:
   // UserScriptSet::Observer implementation.
-  virtual void OnUserScriptsUpdated(
-      const std::set<std::string>& changed_extensions,
-      const std::vector<UserScript*>& scripts) override;
+  void OnUserScriptsUpdated(const std::set<std::string>& changed_extensions,
+                            const std::vector<UserScript*>& scripts) override;
 
   // ScriptInjector implementation.
-  virtual UserScript::InjectionType script_type() const override;
-  virtual bool ShouldExecuteInChildFrames() const override;
-  virtual bool ShouldExecuteInMainWorld() const override;
-  virtual bool IsUserGesture() const override;
-  virtual bool ExpectsResults() const override;
-  virtual bool ShouldInjectJs(
-      UserScript::RunLocation run_location) const override;
-  virtual bool ShouldInjectCss(
-      UserScript::RunLocation run_location) const override;
-  virtual PermissionsData::AccessType CanExecuteOnFrame(
+  UserScript::InjectionType script_type() const override;
+  bool ShouldExecuteInChildFrames() const override;
+  bool ShouldExecuteInMainWorld() const override;
+  bool IsUserGesture() const override;
+  bool ExpectsResults() const override;
+  bool ShouldInjectJs(UserScript::RunLocation run_location) const override;
+  bool ShouldInjectCss(UserScript::RunLocation run_location) const override;
+  PermissionsData::AccessType CanExecuteOnFrame(
       const Extension* extension,
       blink::WebFrame* web_frame,
       int tab_id,
       const GURL& top_url) const override;
-  virtual std::vector<blink::WebScriptSource> GetJsSources(
+  std::vector<blink::WebScriptSource> GetJsSources(
       UserScript::RunLocation run_location) const override;
-  virtual std::vector<std::string> GetCssSources(
+  std::vector<std::string> GetCssSources(
       UserScript::RunLocation run_location) const override;
-  virtual void OnInjectionComplete(
-      scoped_ptr<base::ListValue> execution_results,
-      ScriptsRunInfo* scripts_run_info,
-      UserScript::RunLocation run_location) override;
-  virtual void OnWillNotInject(InjectFailureReason reason) override;
+  void OnInjectionComplete(scoped_ptr<base::ListValue> execution_results,
+                           ScriptsRunInfo* scripts_run_info,
+                           UserScript::RunLocation run_location) override;
+  void OnWillNotInject(InjectFailureReason reason) override;
 
   // The associated user script. Owned by the UserScriptInjector that created
   // this object.
   const UserScript* script_;
 
   // The id of the associated user script. We cache this because when we update
   // the |script_| associated with this injection, the old referance may be
   // deleted.
   int script_id_;
 
   // The associated extension id, preserved for the same reason as |script_id|.
   std::string extension_id_;
 
   // Indicates whether or not this script is declarative. This influences which
   // script permissions are checked before injection.
   bool is_declarative_;
 
   ScopedObserver<UserScriptSet, UserScriptSet::Observer>
       user_script_set_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(UserScriptInjector);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_USER_SCRIPT_INJECTOR_H_