Standardize usage of virtual/override/final specifiers.

ash/shell/lock_view.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 "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell_window_ids.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/window.h"
@@ skipping 14 matching lines @@
 
 class LockView : public views::WidgetDelegateView,
                  public views::ButtonListener {
  public:
   LockView() : unlock_button_(new views::LabelButton(
                                   this, base::ASCIIToUTF16("Unlock"))) {
     unlock_button_->SetStyle(views::Button::STYLE_BUTTON);
     AddChildView(unlock_button_);
     unlock_button_->SetFocusable(true);
   }
-  virtual ~LockView() {}
+  ~LockView() override {}
 
   // Overridden from views::View:
-  virtual gfx::Size GetPreferredSize() const override {
-    return gfx::Size(500, 400);
-  }
+  gfx::Size GetPreferredSize() const override { return gfx::Size(500, 400); }
 
  private:
   // Overridden from views::View:
-  virtual void OnPaint(gfx::Canvas* canvas) override {
+  void OnPaint(gfx::Canvas* canvas) override {
     canvas->FillRect(GetLocalBounds(), SK_ColorYELLOW);
     base::string16 text = base::ASCIIToUTF16("LOCKED!");
     int string_width = gfx::GetStringWidth(text, font_list_);
     canvas->DrawStringRect(text, font_list_, SK_ColorRED,
                            gfx::Rect((width() - string_width)/ 2,
                                      (height() - font_list_.GetHeight()) / 2,
                                      string_width, font_list_.GetHeight()));
   }
-  virtual void Layout() override {
+  void Layout() override {
     gfx::Rect bounds = GetLocalBounds();
     gfx::Size ps = unlock_button_->GetPreferredSize();
     bounds.set_y(bounds.bottom() - ps.height() - 5);
     bounds.set_x((bounds.width() - ps.width()) / 2);
     bounds.set_size(ps);
     unlock_button_->SetBoundsRect(bounds);
   }
-  virtual void ViewHierarchyChanged(
+  void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) override {
     if (details.is_add && details.child == this)
       unlock_button_->RequestFocus();
   }
 
   // Overridden from views::WidgetDelegateView:
-  virtual void WindowClosing() override {
+  void WindowClosing() override {
     Shell::GetInstance()->session_state_delegate()->UnlockScreen();
   }
 
   // Overridden from views::ButtonListener:
-  virtual void ButtonPressed(views::Button* sender,
-                             const ui::Event& event) override {
+  void ButtonPressed(views::Button* sender, const ui::Event& event) override {
     DCHECK(sender == unlock_button_);
     GetWidget()->Close();
   }
 
   gfx::FontList font_list_;
   views::LabelButton* unlock_button_;
 
   DISALLOW_COPY_AND_ASSIGN(LockView);
 };
 
@@ skipping 17 matching lines @@
   widget->GetNativeView()->SetName("LockView");
   widget->GetNativeView()->Focus();
 
   // TODO: it shouldn't be necessary to invoke UpdateTooltip() here.
   Shell::GetInstance()->tooltip_controller()->UpdateTooltip(
       widget->GetNativeView());
 }
 
 }  // namespace shell
 }  // namespace ash