Changes DesktopNativeWidgetAura to not call InitHost or window->Show()

ui/views/mus/desktop_window_tree_host_mus.cc

 // Copyright 2016 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/mus/desktop_window_tree_host_mus.h"
 
 #include "base/memory/ptr_util.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/drag_drop_client.h"
@@ skipping 234 matching lines @@
                                     const Widget::InitParams& params) {
   // Needed so we don't render over the non-client area the window manager
   // renders to.
   content_window->layer()->SetFillsBoundsOpaquely(false);
   if (!params.bounds.IsEmpty())
     SetBoundsInDIP(params.bounds);
 
   cursor_manager_ = base::MakeUnique<wm::CursorManager>(
       base::MakeUnique<NativeCursorManagerMus>(window()));
   aura::client::SetCursorClient(window(), cursor_manager_.get());
+  InitHost();
 }
 
 void DesktopWindowTreeHostMus::OnNativeWidgetCreated(
     const Widget::InitParams& params) {
   if (params.parent && params.parent->GetHost()) {
     parent_ = static_cast<DesktopWindowTreeHostMus*>(params.parent->GetHost());
     parent_->children_.insert(this);
   }
   native_widget_delegate_->OnNativeWidgetCreated(true);
 }
@@ skipping 385 matching lines @@
   native_widget_delegate_->OnNativeWidgetVisibilityChanging(true);
   // Using ui::SHOW_STATE_NORMAL matches that of DesktopWindowTreeHostX11.
   ShowWindowWithState(ui::SHOW_STATE_NORMAL);
   WindowTreeHostMus::ShowImpl();
   native_widget_delegate_->OnNativeWidgetVisibilityChanged(true);
 }
 
 void DesktopWindowTreeHostMus::HideImpl() {
   native_widget_delegate_->OnNativeWidgetVisibilityChanging(false);
   WindowTreeHostMus::HideImpl();
+  window()->Hide();
   native_widget_delegate_->OnNativeWidgetVisibilityChanged(false);
 }
 
 void DesktopWindowTreeHostMus::SetBoundsInPixels(
     const gfx::Rect& bounds_in_pixels) {
   gfx::Rect final_bounds_in_pixels = bounds_in_pixels;
   if (GetBoundsInPixels().size() != bounds_in_pixels.size()) {
     gfx::Size size = bounds_in_pixels.size();
     size.SetToMax(gfx::ConvertSizeToPixel(
         GetScaleFactor(), native_widget_delegate_->GetMinimumSize()));
@@ skipping 19 matching lines @@
   if (window == this->window()) {
     is_active_ = true;
     desktop_native_widget_aura_->HandleActivationChanged(true);
   } else if (is_active_) {
     is_active_ = false;
     desktop_native_widget_aura_->HandleActivationChanged(false);
   }
 }
 
 }  // namespace views