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

chrome/browser/ui/cocoa/validation_message_bubble_cocoa.mm

 // Copyright (c) 2013 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 "base/mac/mac_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/sys_string_conversions.h"
 #import "chrome/browser/ui/cocoa/info_bubble_view.h"
 #import "chrome/browser/ui/cocoa/info_bubble_window.h"
 #import "chrome/browser/ui/cocoa/validation_message_bubble_controller.h"
@@ skipping 144 matching lines @@
                                const gfx::Rect& anchor_in_root_view,
                                const base::string16& main_text,
                                const base::string16& sub_text) {
     controller_.reset([[[ValidationMessageBubbleController alloc]
                         init:[widget_host->GetView()->GetNativeView() window]
                   anchoredAt:GetAnchorPoint(widget_host, anchor_in_root_view)
                     mainText:main_text
                      subText:sub_text] retain]);
   }
 
-  virtual ~ValidationMessageBubbleCocoa() {
-    [controller_.get() close];
-  }
+  ~ValidationMessageBubbleCocoa() override { [controller_.get() close]; }
 
-  virtual void SetPositionRelativeToAnchor(
+  void SetPositionRelativeToAnchor(
       content::RenderWidgetHost* widget_host,
       const gfx::Rect& anchor_in_root_view) override {
     [controller_.get()
         setAnchorPoint:GetAnchorPoint(widget_host, anchor_in_root_view)];
   }
 
  private:
   base::scoped_nsobject<ValidationMessageBubbleController> controller_;
 };
 
 }
 
 // ----------------------------------------------------------------
 
 namespace chrome {
 
 scoped_ptr<ValidationMessageBubble> ValidationMessageBubble::CreateAndShow(
     content::RenderWidgetHost* widget_host,
     const gfx::Rect& anchor_in_root_view,
     const base::string16& main_text,
     const base::string16& sub_text) {
   return scoped_ptr<ValidationMessageBubble>(new ValidationMessageBubbleCocoa(
       widget_host, anchor_in_root_view, main_text, sub_text)).Pass();
 }
 
 }