[ash-md] Updates slider control to show thumb highlight when focused

ash/common/system/tray/tray_popup_utils.cc

 // Copyright 2016 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/common/system/tray/tray_popup_utils.h"
 
 #include "ash/common/ash_constants.h"
 #include "ash/common/ash_view_ids.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
@@ skipping 252 matching lines @@
 views::ToggleButton* TrayPopupUtils::CreateToggleButton(
     views::ButtonListener* listener,
     int accessible_name_id) {
   views::ToggleButton* toggle = new views::ToggleButton(listener);
   const gfx::Size toggle_size(toggle->GetPreferredSize());
   const int vertical_padding = (kMenuButtonSize - toggle_size.height()) / 2;
   const int horizontal_padding =
       (kTrayToggleButtonWidth - toggle_size.width()) / 2;
   toggle->SetBorder(views::CreateEmptyBorder(
       gfx::Insets(vertical_padding, horizontal_padding)));
-  // TODO(varkha): remove this and implement toggle-button specific focus. See
-  // crbug.com/669124
   toggle->SetFocusPainter(CreateFocusPainter());
   toggle->SetAccessibleName(l10n_util::GetStringUTF16(accessible_name_id));
   return toggle;
 }
 
 std::unique_ptr<views::Painter> TrayPopupUtils::CreateFocusPainter() {
   return views::Painter::CreateSolidFocusPainter(
       kFocusBorderColor, kFocusBorderThickness, gfx::InsetsF());
 }
 
@@ skipping 186 matching lines @@
 bool TrayPopupUtils::CanOpenWebUISettings(LoginStatus status) {
   // TODO(tdanderson): Consider moving this into WmShell, or introduce a
   // CanShowSettings() method in each delegate type that has a
   // ShowSettings() method.
   return status != LoginStatus::NOT_LOGGED_IN &&
          status != LoginStatus::LOCKED &&
          !WmShell::Get()->GetSessionStateDelegate()->IsInSecondaryLoginScreen();
 }
 
 }  // namespace ash