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

chrome/browser/dom_distiller/tab_utils.cc

 // 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.
 
 #include "chrome/browser/dom_distiller/tab_utils.h"
 
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/dom_distiller/dom_distiller_service_factory.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper_delegate.h"
@@ skipping 20 matching lines @@
 using dom_distiller::DistillerPage;
 using dom_distiller::SourcePageHandle;
 
 // An no-op ViewRequestDelegate which holds a ViewerHandle and deletes itself
 // after the WebContents navigates or goes away. This class is a band-aid to
 // keep a TaskTracker around until the distillation starts from the viewer.
 class SelfDeletingRequestDelegate : public ViewRequestDelegate,
                                     public content::WebContentsObserver {
  public:
   explicit SelfDeletingRequestDelegate(content::WebContents* web_contents);
-  virtual ~SelfDeletingRequestDelegate();
+  ~SelfDeletingRequestDelegate() override;
 
   // ViewRequestDelegate implementation.
-  virtual void OnArticleReady(
-      const DistilledArticleProto* article_proto) override;
-  virtual void OnArticleUpdated(
-      ArticleDistillationUpdate article_update) override;
+  void OnArticleReady(const DistilledArticleProto* article_proto) override;
+  void OnArticleUpdated(ArticleDistillationUpdate article_update) override;
 
   // content::WebContentsObserver implementation.
-  virtual void DidNavigateMainFrame(
+  void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) override;
-  virtual void RenderProcessGone(base::TerminationStatus status) override;
-  virtual void WebContentsDestroyed() override;
+  void RenderProcessGone(base::TerminationStatus status) override;
+  void WebContentsDestroyed() override;
 
   // Takes ownership of the ViewerHandle to keep distillation alive until |this|
   // is deleted.
   void TakeViewerHandle(scoped_ptr<ViewerHandle> viewer_handle);
 
  private:
   // The handle to the view request towards the DomDistillerService. It
   // needs to be kept around to ensure the distillation request finishes.
   scoped_ptr<ViewerHandle> viewer_handle_;
 };
@@ skipping 85 matching lines @@
   // difficult to distinguish between the intermediate reload and a user hitting
   // the back button.
   StartNavigationToDistillerViewer(new_web_contents,
                                    old_web_contents->GetLastCommittedURL());
 
   CoreTabHelper::FromWebContents(old_web_contents)->delegate()->SwapTabContents(
       old_web_contents, new_web_contents, false, false);
 
   StartDistillation(old_web_contents);
 }