Chromecast: virtual/override cleanup.

chromecast/browser/cast_download_manager_delegate.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 CHROMECAST_BROWSER_CAST_DOWNLOAD_MANAGER_DELEGATE_H_
 #define CHROMECAST_BROWSER_CAST_DOWNLOAD_MANAGER_DELEGATE_H_
 
 #include "base/macros.h"
 #include "content/public/browser/download_manager_delegate.h"
 
 namespace chromecast {
 namespace shell {
 
 class CastDownloadManagerDelegate : public content::DownloadManagerDelegate {
  public:
   CastDownloadManagerDelegate();
-  virtual ~CastDownloadManagerDelegate();
+  ~CastDownloadManagerDelegate() override;
 
   // content::DownloadManagerDelegate implementation:
-  virtual void GetNextId(
-      const content::DownloadIdCallback& callback) override;
-  virtual bool DetermineDownloadTarget(
+  void GetNextId(const content::DownloadIdCallback& callback) override;
+  bool DetermineDownloadTarget(
       content::DownloadItem* item,
       const content::DownloadTargetCallback& callback) override;
-  virtual bool ShouldOpenFileBasedOnExtension(
-      const base::FilePath& path) override;
-  virtual bool ShouldCompleteDownload(
+  bool ShouldOpenFileBasedOnExtension(const base::FilePath& path) override;
+  bool ShouldCompleteDownload(
       content::DownloadItem* item,
       const base::Closure& complete_callback) override;
-  virtual bool ShouldOpenDownload(
+  bool ShouldOpenDownload(
       content::DownloadItem* item,
       const content::DownloadOpenDelayedCallback& callback) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CastDownloadManagerDelegate);
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
-#endif  // CHROMECAST_BROWSER_CAST_DOWNLOAD_MANAGER_DELEGATE_H_
+#endif  // CHROMECAST_BROWSER_CAST_DOWNLOAD_MANAGER_DELEGATE_H_