Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/views/tabs/tab_drag_controller.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 "chrome/browser/ui/views/tabs/tab_drag_controller.h"
 
 #include <math.h>
 #include <set>
 
 #include "base/auto_reset.h"
@@ skipping 118 matching lines @@
     (*rects)[i].set_x((*rects)[i].x() + x_offset);
 }
 
 // WidgetObserver implementation that resets the window position managed
 // property on Show.
 // We're forced to do this here since BrowserFrameAsh resets the 'window
 // position managed' property during a show and we need the property set to
 // false before WorkspaceLayoutManager sees the visibility change.
 class WindowPositionManagedUpdater : public views::WidgetObserver {
  public:
-  virtual void OnWidgetVisibilityChanged(views::Widget* widget,
-                                         bool visible) override {
+  void OnWidgetVisibilityChanged(views::Widget* widget, bool visible) override {
     SetWindowPositionManaged(widget->GetNativeWindow(), false);
   }
 };
 
 // EscapeTracker installs an event monitor and runs a callback when it receives
 // the escape key.
 class EscapeTracker : public ui::EventHandler {
  public:
   explicit EscapeTracker(const base::Closure& callback)
       : escape_callback_(callback),
         event_monitor_(views::EventMonitor::Create(this)) {
   }
 
  private:
   // ui::EventHandler:
-  virtual void OnKeyEvent(ui::KeyEvent* key) override {
+  void OnKeyEvent(ui::KeyEvent* key) override {
     if (key->type() == ui::ET_KEY_PRESSED &&
         key->key_code() == ui::VKEY_ESCAPE) {
       escape_callback_.Run();
     }
   }
 
   base::Closure escape_callback_;
   scoped_ptr<views::EventMonitor> event_monitor_;
 
   DISALLOW_COPY_AND_ASSIGN(EscapeTracker);
@@ skipping 1637 matching lines @@
        it != browser_list->end(); ++it) {
     if ((*it)->tab_strip_model()->empty())
       exclude.insert((*it)->window()->GetNativeWindow());
   }
 #endif
   return GetLocalProcessWindowAtPoint(host_desktop_type_,
                                       screen_point,
                                       exclude);
 
 }