Add a flag use_software_compositing to the Widget::InitParams structure.

ui/views/widget/desktop_aura/desktop_window_tree_host_win.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_window_tree_host_win.h"
 
 #include "base/win/metro.h"
 #include "third_party/skia/include/core/SkPath.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 122 matching lines @@
   HWND parent_hwnd = NULL;
   if (params.parent && params.parent->GetHost())
     parent_hwnd = params.parent->GetHost()->GetAcceleratedWidget();
 
   message_handler_->set_remove_standard_frame(params.remove_standard_frame);
 
   has_non_client_view_ = Widget::RequiresNonClientView(params.type);
 
   gfx::Rect pixel_bounds = gfx::win::DIPToScreenRect(params.bounds);
   message_handler_->Init(parent_hwnd, pixel_bounds);
-  if (params.type == Widget::InitParams::TYPE_MENU) {
+  if (params.force_software_compositing) {
     ::SetProp(GetAcceleratedWidget(),
               kForceSoftwareCompositor,
               reinterpret_cast<HANDLE>(true));
   }
   CreateCompositor();
   OnAcceleratedWidgetAvailable();
 }
 
 void DesktopWindowTreeHostWin::OnNativeWidgetCreated(
     const Widget::InitParams& params) {
@@ skipping 800 matching lines @@
 
 // static
 DesktopWindowTreeHost* DesktopWindowTreeHost::Create(
     internal::NativeWidgetDelegate* native_widget_delegate,
     DesktopNativeWidgetAura* desktop_native_widget_aura) {
   return new DesktopWindowTreeHostWin(native_widget_delegate,
                                       desktop_native_widget_aura);
 }
 
 }  // namespace views