Update SetPaintToLayer to accept LayerType

ash/common/system/tray/tray_details_view.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/tray_details_view.h"
 
 #include "ash/common/ash_view_ids.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/system/tray/fixed_sized_scroll_view.h"
 #include "ash/common/system/tray/system_menu_button.h"
 #include "ash/common/system/tray/system_tray.h"
 #include "ash/common/system/tray/system_tray_item.h"
 #include "ash/common/system/tray/tray_constants.h"
 #include "ash/common/system/tray/tray_popup_item_style.h"
 #include "ash/common/system/tray/tray_popup_utils.h"
 #include "ash/common/system/tray/tri_view.h"
 #include "base/containers/adapters.h"
 #include "base/memory/ptr_util.h"
 #include "base/timer/timer.h"
 #include "grit/ash_strings.h"
 #include "third_party/skia/include/core/SkDrawLooper.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/compositor/layer_type.h"
 #include "ui/compositor/paint_context.h"
 #include "ui/compositor/paint_recorder.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/background.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/progress_bar.h"
 #include "ui/views/controls/scroll_view.h"
 #include "ui/views/controls/separator.h"
@@ skipping 327 matching lines @@
   Layout();
 }
 
 void TrayDetailsView::CreateScrollableList() {
   DCHECK(!scroller_);
   scroll_content_ = new ScrollContentsView();
   scroller_ = new FixedSizedScrollView;
   scroller_->SetContentsView(scroll_content_);
   // Make the |scroller_| have a layer to clip |scroll_content_|'s children.
   // TODO(varkha): Make the sticky rows work with EnableViewPortLayer().
-  scroller_->SetPaintToLayer(true);
+  scroller_->SetPaintToLayer(ui::LAYER_TEXTURED);
   scroller_->set_background(
       views::Background::CreateSolidBackground(kBackgroundColor));
   scroller_->layer()->SetMasksToBounds(true);
 
   // Note: |scroller_| takes ownership of |scroll_border_|.
   if (!UseMd()) {
     // In MD, the scroller is always the last thing, so this border is
     // unnecessary and reserves extra space we don't want.
     scroll_border_ = new ScrollBorder;
     scroller_->SetBorder(std::unique_ptr<views::Border>(scroll_border_));
@@ skipping 177 matching lines @@
     if (index < child_count() - 1 && child_at(index + 1) != title_row_)
       scroll_border_->set_visible(true);
     else
       scroll_border_->set_visible(false);
   }
 
   views::View::OnPaintBorder(canvas);
 }
 
 }  // namespace ash