MacViews: Implement Full Keyboard Access.

ui/message_center/views/message_center_button_bar.cc

 // Copyright 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 "ui/message_center/views/message_center_button_bar.h"
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 58 matching lines @@
     : views::ToggleImageButton(listener), size_(kButtonSize, kButtonSize) {
   ui::ResourceBundle& resource_bundle = ui::ResourceBundle::GetSharedInstance();
   SetImage(STATE_NORMAL, resource_bundle.GetImageSkiaNamed(normal_id));
   SetImage(STATE_HOVERED, resource_bundle.GetImageSkiaNamed(hover_id));
   SetImage(STATE_PRESSED, resource_bundle.GetImageSkiaNamed(pressed_id));
   SetImageAlignment(views::ImageButton::ALIGN_CENTER,
                     views::ImageButton::ALIGN_MIDDLE);
   if (text_id)
     SetTooltipText(resource_bundle.GetLocalizedString(text_id));
 
-  SetFocusBehavior(FocusBehavior::ALWAYS);
+  Button::ConfigureDefaultFocus(this);
   set_request_focus_on_press(false);
 
   SetFocusPainter(views::Painter::CreateSolidFocusPainter(
       kFocusBorderColor,
       gfx::Insets(1, 2, 2, 2)));
 }
 
 gfx::Size NotificationCenterButton::GetPreferredSize() const { return size_; }
 
 // MessageCenterButtonBar /////////////////////////////////////////////////////
@@ skipping 208 matching lines @@
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   } else if (sender == close_bubble_button_) {
     message_center_view()->tray()->HideMessageCenterBubble();
 #endif
   } else {
     NOTREACHED();
   }
 }
 
 }  // namespace message_center