Get the custom frame limping with win-aura.

ui/views/widget/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/native_widget_aura.h"
 
 #include "base/bind.h"
 #include "base/string_util.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/activation_client.h"
@@ skipping 213 matching lines @@
 #endif  // !defined(OS_MACOSX)
 
   drop_helper_.reset(new DropHelper(GetWidget()->GetRootView()));
   if (params.type != Widget::InitParams::TYPE_TOOLTIP &&
       params.type != Widget::InitParams::TYPE_POPUP) {
     aura::client::SetDragDropDelegate(window_, this);
   }
 
   aura::client::SetActivationDelegate(window_, this);
 
-  // TODO(erg): Move this somewhere else?
-  if (desktop_helper_.get())
+  if (desktop_helper_.get()) {
+    desktop_helper_->PostInitialize();
+    // TODO(erg): Move this somewhere else?
     desktop_helper_->ShowRootWindow();
+  }
 }
 
 NonClientFrameView* NativeWidgetAura::CreateNonClientFrameView() {
   return NULL;
 }
 
 void NativeWidgetAura::UpdateFrameAfterFrameChange() {
 }
 
 bool NativeWidgetAura::ShouldUseNativeFrame() const {
@@ skipping 717 matching lines @@
   }
 }
 
 // static
 bool NativeWidgetPrivate::IsMouseButtonDown() {
   return aura::Env::GetInstance()->is_mouse_button_down();
 }
 
 }  // namespace internal
 }  // namespace views