Standardize usage of virtual/override/final specifiers.

ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.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 "ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h"
 
 #include <X11/Xatom.h>
 
 #include "base/event_types.h"
 #include "base/lazy_instance.h"
@@ skipping 90 matching lines @@
 
 DesktopDragDropClientAuraX11*
 DesktopDragDropClientAuraX11::g_current_drag_drop_client = NULL;
 
 class DesktopDragDropClientAuraX11::X11DragContext
     : public ui::PlatformEventDispatcher {
  public:
   X11DragContext(ui::X11AtomCache* atom_cache,
                  ::Window local_window,
                  const XClientMessageEvent& event);
-  virtual ~X11DragContext();
+  ~X11DragContext() override;
 
   // When we receive an XdndPosition message, we need to have all the data
   // copied from the other window before we process the XdndPosition
   // message. If we have that data already, dispatch immediately. Otherwise,
   // delay dispatching until we do.
   void OnStartXdndPositionMessage(DesktopDragDropClientAuraX11* client,
                                   ::Atom suggested_action,
                                   ::Window source_window,
                                   const gfx::Point& screen_point);
 
@@ skipping 15 matching lines @@
   // Creates a ui::DragDropTypes::DragOperation representation of the current
   // action list.
   int GetDragOperation() const;
 
  private:
   // Masks the X11 atom |xdnd_operation|'s views representation onto
   // |drag_operation|.
   void MaskOperation(::Atom xdnd_operation, int* drag_operation) const;
 
   // ui::PlatformEventDispatcher:
-  virtual bool CanDispatchEvent(const ui::PlatformEvent& event) override;
-  virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
+  bool CanDispatchEvent(const ui::PlatformEvent& event) override;
+  uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
 
   // The atom cache owned by our parent.
   ui::X11AtomCache* atom_cache_;
 
   // The XID of our chrome local aura window handling our events.
   ::Window local_window_;
 
   // The XID of the window that's initiated the drag.
   unsigned long source_window_;
 
@@ skipping 981 matching lines @@
     for (int x = 0; x < in_bitmap->width(); ++x) {
       if (SkColorGetA(in_row[x]) > kMinAlpha)
         return true;
     }
   }
 
   return false;
 }
 
 }  // namespace views