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

content/browser/download/download_manager_impl.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 "content/browser/download/download_manager_impl.h"
 
 #include <iterator>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 143 matching lines @@
   }
 
  private:
   base::hash_map<int64, DownloadItem*>::const_iterator iter_;
   // Allow copy and assign.
 };
 
 class DownloadItemFactoryImpl : public DownloadItemFactory {
  public:
   DownloadItemFactoryImpl() {}
-  virtual ~DownloadItemFactoryImpl() {}
+  ~DownloadItemFactoryImpl() override {}
 
-  virtual DownloadItemImpl* CreatePersistedItem(
+  DownloadItemImpl* CreatePersistedItem(
       DownloadItemImplDelegate* delegate,
       uint32 download_id,
       const base::FilePath& current_path,
       const base::FilePath& target_path,
       const std::vector<GURL>& url_chain,
       const GURL& referrer_url,
       const std::string& mime_type,
       const std::string& original_mime_type,
       const base::Time& start_time,
       const base::Time& end_time,
@@ skipping 21 matching lines @@
         last_modified,
         received_bytes,
         total_bytes,
         state,
         danger_type,
         interrupt_reason,
         opened,
         bound_net_log);
   }
 
-  virtual DownloadItemImpl* CreateActiveItem(
+  DownloadItemImpl* CreateActiveItem(
       DownloadItemImplDelegate* delegate,
       uint32 download_id,
       const DownloadCreateInfo& info,
       const net::BoundNetLog& bound_net_log) override {
     return new DownloadItemImpl(delegate, download_id, info, bound_net_log);
   }
 
-  virtual DownloadItemImpl* CreateSavePageItem(
+  DownloadItemImpl* CreateSavePageItem(
       DownloadItemImplDelegate* delegate,
       uint32 download_id,
       const base::FilePath& path,
       const GURL& url,
       const std::string& mime_type,
       scoped_ptr<DownloadRequestHandleInterface> request_handle,
       const net::BoundNetLog& bound_net_log) override {
     return new DownloadItemImpl(delegate, download_id, path, url,
                                 mime_type, request_handle.Pass(),
                                 bound_net_log);
@@ skipping 490 matching lines @@
   if (delegate_)
     delegate_->OpenDownload(download);
 }
 
 void DownloadManagerImpl::ShowDownloadInShell(DownloadItemImpl* download) {
   if (delegate_)
     delegate_->ShowDownloadInShell(download);
 }
 
 }  // namespace content