Set "Hover" status during focus for accessibility.

ash/launcher/launcher_button.h

 // 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.
 
 #ifndef ASH_LAUNCHER_LAUNCHER_BUTTON_H_
 #define ASH_LAUNCHER_LAUNCHER_BUTTON_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/views/controls/button/custom_button.h"
@@ skipping 18 matching lines @@
     //   e.g. A TYPE_TABBED item that has a window.
     STATE_RUNNING   = 1 << 1,
     // Underlying LauncherItem is active (i.e. has focus).
     STATE_ACTIVE    = 1 << 2,
     // Underlying LauncherItem needs user's attention.
     STATE_ATTENTION = 1 << 3,
     // Underlying LauncherItem has pending operations.
     //   e.g. A TYPE_APP_SHORTCUT item whose corresponding app is being
     //        installed.
     STATE_PENDING   = 1 << 4,
+    STATE_FOCUSED   = 1 << 5,
   };
 
   virtual ~LauncherButton();
 
   // Called to create an instance of a LauncherButton.
   static LauncherButton* Create(views::ButtonListener* listener,
                                 LauncherButtonHost* host);
 
   // Sets the image to display for this entry.
   void SetImage(const SkBitmap& image);
@@ skipping 35 matching lines @@
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseCaptureLost() OVERRIDE;
   virtual bool OnMouseDragged(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE;
   virtual void OnMouseExited(const views::MouseEvent& event) OVERRIDE;
   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual bool GetTooltipText(const gfx::Point& p,
                               string16* tooltip) const OVERRIDE;
+  virtual void OnFocus() OVERRIDE;
+  virtual void OnBlur() OVERRIDE;
 
   // Sets the icon image with a shadow.
   void SetShadowedImage(const SkBitmap& bitmap);
   // Override for custom initialization.
   virtual void Init();
   // Override to subclass IconView.
   virtual IconView* CreateIconView();
   IconView* icon_view() const { return icon_view_; }
   LauncherButtonHost* host() const { return host_; }
 
@@ skipping 21 matching lines @@
   // has a STATE_PENDING bit and destroyed when that bit is clear.
   scoped_ptr<IconPulseAnimation> icon_pulse_animation_;
 
   DISALLOW_COPY_AND_ASSIGN(LauncherButton);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_LAUNCHER_LAUNCHER_BUTTON_H_