win: Fix black pixel artifact at right and bottom

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/macros.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
@@ skipping 517 matching lines @@
 
   shadow_controller_.reset(new wm::ShadowController(
       aura::client::GetActivationClient(host_->window())));
 
   OnSizeConstraintsChanged();
 
   window_reorderer_.reset(new WindowReorderer(content_window_,
       GetWidget()->GetRootView()));
 }
 
-void DesktopNativeWidgetAura::OnWidgetInitDone() {}
+void DesktopNativeWidgetAura::OnWidgetInitDone() {
+  desktop_window_tree_host_->OnNativeWidgetInitDone();
+}
 
 NonClientFrameView* DesktopNativeWidgetAura::CreateNonClientFrameView() {
   return ShouldUseNativeFrame() ? new NativeFrameView(GetWidget()) : NULL;
 }
 
 bool DesktopNativeWidgetAura::ShouldUseNativeFrame() const {
   return desktop_window_tree_host_->ShouldUseNativeFrame();
 }
 
 bool DesktopNativeWidgetAura::ShouldWindowContentsBeTransparent() const {
@@ skipping 642 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