[ash-md] Fixed the effective text/icon colors in the system menu.

ash/common/system/tray_accessibility.cc

 // 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.
 
 #include "ash/common/system/tray_accessibility.h"
 
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/accessibility_types.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
@@ skipping 93 matching lines @@
  protected:
   // TrayItemMore:
   void UpdateStyle() override {
     TrayItemMore::UpdateStyle();
 
     if (!UseMdMenu())
       return;
 
     std::unique_ptr<TrayPopupItemStyle> style = CreateStyle();
     SetImage(gfx::CreateVectorIcon(kSystemMenuAccessibilityIcon,
-                                   style->GetForegroundColor()));
+                                   style->GetIconColor()));
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DefaultAccessibilityView);
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // ash::tray::AccessibilityPopupView
 
 AccessibilityPopupView::AccessibilityPopupView(SystemTrayItem* owner,
@@ skipping 352 matching lines @@
     if (detailed_popup_)
       detailed_popup_->GetWidget()->Close();
     if (detailed_menu_)
       detailed_menu_->GetWidget()->Close();
   }
 
   previous_accessibility_state_ = accessibility_state;
 }
 
 }  // namespace ash