Positions the launcher in the bottom left corner. Adds ShellDelegate

ui/aura/window.cc

 // Copyright (c) 2011 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/aura/window.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "ui/aura/desktop.h"
@@ skipping 187 matching lines @@
 }
 
 void Window::AddChild(Window* child) {
   DCHECK(std::find(children_.begin(), children_.end(), child) ==
       children_.end());
   if (child->parent())
     child->parent()->RemoveChild(child);
   child->parent_ = this;
   layer_->Add(child->layer_.get());
   children_.push_back(child);
+  if (GetRoot())
+    Desktop::GetInstance()->WindowAdded(child);
 }
 
 void Window::RemoveChild(Window* child) {
   Windows::iterator i = std::find(children_.begin(), children_.end(), child);
   DCHECK(i != children_.end());
+  if (GetRoot())
+    Desktop::GetInstance()->WillRemoveWindow(child);
   child->parent_ = NULL;
   layer_->Remove(child->layer_.get());
   children_.erase(i);
 }
 
 Window* Window::GetChildById(int id) {
   return const_cast<Window*>(const_cast<const Window*>(this)->GetChildById(id));
 }
 
 const Window* Window::GetChildById(int id) const {
@@ skipping 166 matching lines @@
   if (restore_bounds_.IsEmpty())
     restore_bounds_ = bounds();
   return true;
 }
 
 void Window::OnPaintLayer(gfx::Canvas* canvas) {
   delegate_->OnPaint(canvas);
 }
 
 }  // namespace aura