Standardize usage of virtual/override/final in components/

components/captive_portal/captive_portal_detector.h

 // Copyright (c) 2012 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 COMPONENTS_CAPTIVE_PORTAL_CAPTIVE_PORTAL_DETECTOR_H_
 #define COMPONENTS_CAPTIVE_PORTAL_CAPTIVE_PORTAL_DETECTOR_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 31 matching lines @@
 
   // The test URL.  When connected to the Internet, it should return a
   // blank page with a 204 status code.  When behind a captive portal,
   // requests for this URL should get an HTTP redirect or a login
   // page.  When neither is true, no server should respond to requests
   // for this URL.
   static const char kDefaultURL[];
 
   explicit CaptivePortalDetector(
       const scoped_refptr<net::URLRequestContextGetter>& request_context);
-  virtual ~CaptivePortalDetector();
+  ~CaptivePortalDetector() override;
 
   // Triggers a check for a captive portal. After completion, runs the
   // |callback|.
   void DetectCaptivePortal(const GURL& url, const DetectionCallback& callback);
 
   // Cancels captive portal check.
   void Cancel();
 
  private:
   friend class CaptivePortalDetectorTestBase;
 
   // net::URLFetcherDelegate:
-  virtual void OnURLFetchComplete(const net::URLFetcher* source) override;
+  void OnURLFetchComplete(const net::URLFetcher* source) override;
 
   // Takes a net::URLFetcher that has finished trying to retrieve the
   // test URL, and fills a Results struct based on its result.  If the
   // response is a 503 with a Retry-After header, |retry_after| field
   // of |results| is populated accordingly.  Otherwise, it's set to
   // base::TimeDelta().
   void GetCaptivePortalResultFromResponse(const net::URLFetcher* url_fetcher,
                                           Results* results) const;
 
   // Returns the current time. Used only when determining time until a
@@ skipping 22 matching lines @@
 
   // Test time used by unit tests.
   base::Time time_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(CaptivePortalDetector);
 };
 
 }  // namespace captive_portal
 
 #endif  // COMPONENTS_CAPTIVE_PORTAL_CAPTIVE_PORTAL_DETECTOR_H_