Give up focus if the focused view becomes unfocusable

ash/shelf/shelf_button.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 "ash/shelf/shelf_button.h"
 
 #include <algorithm>
 
 #include "ash/ash_constants.h"
 #include "ash/ash_switches.h"
@@ skipping 220 matching lines @@
 ShelfButton::ShelfButton(views::ButtonListener* listener,
                          ShelfButtonHost* host,
                          ShelfLayoutManager* shelf_layout_manager)
     : CustomButton(listener),
       host_(host),
       icon_view_(NULL),
       bar_(new BarView(this)),
       state_(STATE_NORMAL),
       shelf_layout_manager_(shelf_layout_manager),
       destroyed_flag_(NULL) {
-  set_accessibility_focusable(true);
+  SetAccessibilityFocusable(true);
 
   const gfx::ShadowValue kShadows[] = {
     gfx::ShadowValue(gfx::Point(0, 2), 0, SkColorSetARGB(0x1A, 0, 0, 0)),
     gfx::ShadowValue(gfx::Point(0, 3), 1, SkColorSetARGB(0x1A, 0, 0, 0)),
     gfx::ShadowValue(gfx::Point(0, 0), 1, SkColorSetARGB(0x54, 0, 0, 0)),
   };
   icon_shadows_.assign(kShadows, kShadows + arraysize(kShadows));
 
   AddChildView(bar_);
 }
@@ skipping 333 matching lines @@
             views::ImageView::CENTER,
             views::ImageView::LEADING));
     bar_->SchedulePaint();
   }
 
   bar_->SetVisible(bar_id != 0 && state_ != STATE_NORMAL);
 }
 
 }  // namespace internal
 }  // namespace ash