Convert Pass()→std::move() in //ash (CrOS edition)

ash/system/chromeos/session/logout_button_tray.cc

 // Copyright 2014 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/system/chromeos/session/logout_button_tray.h"
 
+#include <utility>
+
 #include "ash/shelf/shelf_types.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/session/logout_confirmation_controller.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_utils.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 59 matching lines @@
   border->SetPainter(false, views::Button::STATE_NORMAL,
       views::Painter::CreateImageGridPainter(kLogoutButtonNormalImages));
   border->SetPainter(false, views::Button::STATE_HOVERED,
       views::Painter::CreateImageGridPainter(kLogoutButtonNormalImages));
   border->SetPainter(false, views::Button::STATE_PRESSED,
       views::Painter::CreateImageGridPainter(kLogoutButtonPushedImages));
   gfx::Insets insets = border->GetInsets();
   insets += gfx::Insets(0, kLogoutButtonHorizontalExtraPadding,
                         0, kLogoutButtonHorizontalExtraPadding);
   border->set_insets(insets);
-  SetBorder(border.Pass());
+  SetBorder(std::move(border));
   set_animate_on_state_change(false);
 
   SetMinSize(gfx::Size(0, kShelfItemHeight));
 }
 
 LogoutButton::~LogoutButton() {
 }
 
 LogoutButtonTray::LogoutButtonTray(StatusAreaWidget* status_area_widget)
     : TrayBackgroundView(status_area_widget),
@@ skipping 59 matching lines @@
   UpdateVisibility();
 }
 
 void LogoutButtonTray::UpdateVisibility() {
   SetVisible(show_logout_button_in_tray_ &&
              login_status_ != user::LOGGED_IN_NONE &&
              login_status_ != user::LOGGED_IN_LOCKED);
 }
 
 }  // namespace ash