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

chrome/browser/task_manager/extension_information.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/task_manager/extension_information.h"
 
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 29 matching lines @@
 }
 
 }  // namespace
 
 namespace task_manager {
 
 class ExtensionProcessResource : public RendererResource {
  public:
   explicit ExtensionProcessResource(const Extension* extension,
                                     content::RenderViewHost* render_view_host);
-  virtual ~ExtensionProcessResource();
+  ~ExtensionProcessResource() override;
 
   // Resource methods:
-  virtual base::string16 GetTitle() const override;
-  virtual gfx::ImageSkia GetIcon() const override;
-  virtual Type GetType() const override;
+  base::string16 GetTitle() const override;
+  gfx::ImageSkia GetIcon() const override;
+  Type GetType() const override;
 
  private:
   // Returns true if the associated extension has a background page.
   bool IsBackground() const;
 
   // The icon painted for the extension process.
   static gfx::ImageSkia* default_icon_;
 
   // Cached data about the extension.
   base::string16 title_;
@@ skipping 106 matching lines @@
   const Extension* extension = GetExtensionForWebContents(web_contents);
   if (!extension) {
     NOTREACHED();
     return scoped_ptr<RendererResource>();
   }
   return scoped_ptr<RendererResource>(new ExtensionProcessResource(
       extension, web_contents->GetRenderViewHost()));
 }
 
 }  // namespace task_manager