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

chrome/browser/captive_portal/captive_portal_service.cc

 // 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.
 
 #include "chrome/browser/captive_portal/captive_portal_service.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 133 matching lines @@
 
 class CaptivePortalService::RecheckBackoffEntry : public net::BackoffEntry {
  public:
   explicit RecheckBackoffEntry(CaptivePortalService* captive_portal_service)
       : net::BackoffEntry(
             &captive_portal_service->recheck_policy().backoff_policy),
         captive_portal_service_(captive_portal_service) {
   }
 
  private:
-  virtual base::TimeTicks ImplGetTimeNow() const override {
+  base::TimeTicks ImplGetTimeNow() const override {
     return captive_portal_service_->GetCurrentTimeTicks();
   }
 
   CaptivePortalService* captive_portal_service_;
 
   DISALLOW_COPY_AND_ASSIGN(RecheckBackoffEntry);
 };
 
 CaptivePortalService::RecheckPolicy::RecheckPolicy()
     : initial_backoff_no_portal_ms(600 * 1000),
@@ skipping 225 matching lines @@
     return time_ticks_for_testing_;
 }
 
 bool CaptivePortalService::DetectionInProgress() const {
   return state_ == STATE_CHECKING_FOR_PORTAL;
 }
 
 bool CaptivePortalService::TimerRunning() const {
   return check_captive_portal_timer_.IsRunning();
 }