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

chrome/browser/safe_browsing/protocol_manager.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/safe_browsing/protocol_manager.h"
 
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
 #include "base/metrics/histogram.h"
@@ skipping 55 matching lines @@
 // The maximum time, in seconds, to wait for a response to an update request.
 static const int kSbMaxUpdateWaitSec = 30;
 
 // Maximum back off multiplier.
 static const size_t kSbMaxBackOff = 8;
 
 // The default SBProtocolManagerFactory.
 class SBProtocolManagerFactoryImpl : public SBProtocolManagerFactory {
  public:
   SBProtocolManagerFactoryImpl() { }
-  virtual ~SBProtocolManagerFactoryImpl() { }
-  virtual SafeBrowsingProtocolManager* CreateProtocolManager(
+  ~SBProtocolManagerFactoryImpl() override {}
+  SafeBrowsingProtocolManager* CreateProtocolManager(
       SafeBrowsingProtocolManagerDelegate* delegate,
       net::URLRequestContextGetter* request_context_getter,
       const SafeBrowsingProtocolConfig& config) override {
     return new SafeBrowsingProtocolManager(
         delegate, request_context_getter, config);
   }
  private:
   DISALLOW_COPY_AND_ASSIGN(SBProtocolManagerFactoryImpl);
 };
 
@@ skipping 688 matching lines @@
     FullHashCallback callback, bool is_download)
     : callback(callback),
       is_download(is_download) {
 }
 
 SafeBrowsingProtocolManager::FullHashDetails::~FullHashDetails() {
 }
 
 SafeBrowsingProtocolManagerDelegate::~SafeBrowsingProtocolManagerDelegate() {
 }