Standardize usage of virtual/override/final in extensions/

extensions/browser/guest_view/web_view/web_view_permission_helper.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_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_PERMISSION_HELPER_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_PERMISSION_HELPER_H_
 
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/user_metrics_action.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 10 matching lines @@
 class WebViewPermissionHelperDelegate;
 
 // WebViewPermissionHelper manages <webview> permission requests. This helper
 // class is owned by WebViewGuest. Its purpose is to request permission for
 // various operations from the <webview> embedder, and reply back via callbacks
 // to the callers on a response from the embedder.
 class WebViewPermissionHelper
       : public content::WebContentsObserver {
  public:
   explicit WebViewPermissionHelper(WebViewGuest* guest);
-  virtual ~WebViewPermissionHelper();
+  ~WebViewPermissionHelper() override;
   typedef base::Callback<
       void(bool /* allow */, const std::string& /* user_input */)>
       PermissionResponseCallback;
 
   // A map to store the callback for a request keyed by the request's id.
   struct PermissionResponseInfo {
     PermissionResponseCallback callback;
     WebViewPermissionType permission_type;
     bool allowed_by_default;
     PermissionResponseInfo();
@@ skipping 93 matching lines @@
   WebViewGuest* web_view_guest() { return web_view_guest_; }
 
  private:
   void OnMediaPermissionResponse(const content::MediaStreamRequest& request,
                                  const content::MediaResponseCallback& callback,
                                  bool allow,
                                  const std::string& user_input);
 
 #if defined(ENABLE_PLUGINS)
   // content::WebContentsObserver implementation.
-  virtual bool OnMessageReceived(
-      const IPC::Message& message,
-      content::RenderFrameHost* render_frame_host) override;
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message,
+                         content::RenderFrameHost* render_frame_host) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 #endif  // defined(ENABLE_PLUGINS)
 
   // A counter to generate a unique request id for a permission request.
   // We only need the ids to be unique for a given WebViewGuest.
   int next_permission_request_id_;
 
   WebViewPermissionHelper::RequestMap pending_permission_requests_;
 
   scoped_ptr<WebViewPermissionHelperDelegate>
       web_view_permission_helper_delegate_;
 
   WebViewGuest* const web_view_guest_;
 
   base::WeakPtrFactory<WebViewPermissionHelper> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebViewPermissionHelper);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_PERMISSION_HELPER_H_