Makes WindowTreeHost::InitHost() not Show the window

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 407 matching lines @@
   if (!desktop_window_tree_host_) {
     desktop_window_tree_host_ =
         params.desktop_window_tree_host
             ? params.desktop_window_tree_host
             : DesktopWindowTreeHost::Create(native_widget_delegate_, this);
     host_.reset(desktop_window_tree_host_->AsWindowTreeHost());
   }
   desktop_window_tree_host_->Init(content_window_, params);
 
   host_->InitHost();
+  host_->window()->Show();
   host_->window()->AddChild(content_window_container_);
   host_->window()->SetProperty(kDesktopNativeWidgetAuraKey, this);
 
   host_->window()->AddObserver(new RootWindowDestructionObserver(this));
 
   // The WindowsModalityController event filter should be at the head of the
   // pre target handlers list. This ensures that it handles input events first
   // when modal windows are at the top of the Zorder.
   if (widget_type_ == Widget::InitParams::TYPE_WINDOW)
     window_modality_controller_.reset(
@@ skipping 764 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