Use the native frame for the task manager on Linux Aura

ui/views/widget/desktop_aura/desktop_native_widget_aura.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 "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/cursor_client.h"
@@ skipping 27 matching lines @@
 #include "ui/views/widget/desktop_aura/desktop_screen_position_client.h"
 #include "ui/views/widget/desktop_aura/desktop_window_tree_host.h"
 #include "ui/views/widget/drop_helper.h"
 #include "ui/views/widget/native_widget_aura.h"
 #include "ui/views/widget/root_view.h"
 #include "ui/views/widget/tooltip_manager_aura.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_aura_utils.h"
 #include "ui/views/widget/widget_delegate.h"
 #include "ui/views/widget/window_reorderer.h"
+#include "ui/views/window/native_frame_view.h"
 #include "ui/wm/core/compound_event_filter.h"
 #include "ui/wm/core/cursor_manager.h"
 #include "ui/wm/core/focus_controller.h"
 #include "ui/wm/core/input_method_event_filter.h"
 #include "ui/wm/core/native_cursor_manager.h"
 #include "ui/wm/core/shadow_controller.h"
 #include "ui/wm/core/shadow_types.h"
 #include "ui/wm/core/visibility_controller.h"
 #include "ui/wm/core/window_modality_controller.h"
 #include "ui/wm/public/activation_client.h"
@@ skipping 471 matching lines @@
   content_window_->SetProperty(aura::client::kCanMaximizeKey,
                                GetWidget()->widget_delegate()->CanMaximize());
   content_window_->SetProperty(aura::client::kCanResizeKey,
                                GetWidget()->widget_delegate()->CanResize());
 
   window_reorderer_.reset(new WindowReorderer(content_window_,
       GetWidget()->GetRootView()));
 }
 
 NonClientFrameView* DesktopNativeWidgetAura::CreateNonClientFrameView() {
-  return desktop_window_tree_host_->CreateNonClientFrameView();
+  return ShouldUseNativeFrame() ? new NativeFrameView(GetWidget()) : NULL;
 }
 
 bool DesktopNativeWidgetAura::ShouldUseNativeFrame() const {
   return desktop_window_tree_host_->ShouldUseNativeFrame();
 }
 
 bool DesktopNativeWidgetAura::ShouldWindowContentsBeTransparent() const {
   return desktop_window_tree_host_->ShouldWindowContentsBeTransparent();
 }
 
@@ skipping 644 matching lines @@
   if (cursor_reference_count_ == 0) {
     // We are the last DesktopNativeWidgetAura instance, and we are responsible
     // for cleaning up |cursor_manager_|.
     delete cursor_manager_;
     native_cursor_manager_ = NULL;
     cursor_manager_ = NULL;
   }
 }
 
 }  // namespace views