Reorder the NativeViews attached to a view via kViewHostKey according to the position of the view

ui/aura/window.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/aura/window.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 322 matching lines @@
 void Window::StackChildAtTop(Window* child) {
   if (children_.size() <= 1 || child == children_.back())
     return;  // In the front already.
   StackChildAbove(child, children_.back());
 }
 
 void Window::StackChildAbove(Window* child, Window* target) {
   StackChildRelativeTo(child, target, STACK_ABOVE);
 }
 
+void Window::StackChildAtBottom(Window* child) {
+  if (children_.size() <= 1 || child == children_.front())
+    return;  // At the bottom already.
+  StackChildBelow(child, children_.front());
+}
+
 void Window::StackChildBelow(Window* child, Window* target) {
   StackChildRelativeTo(child, target, STACK_BELOW);
 }
 
 void Window::AddChild(Window* child) {
   WindowObserver::HierarchyChangeParams params;
   params.target = child;
   params.new_parent = this;
   params.old_parent = child->parent();
   params.phase = WindowObserver::HierarchyChangeParams::HIERARCHY_CHANGING;
@@ skipping 747 matching lines @@
   bool contains_mouse = false;
   if (IsVisible()) {
     RootWindow* root_window = GetRootWindow();
     contains_mouse = root_window &&
         ContainsPointInRoot(root_window->GetLastMouseLocationInRoot());
   }
   return contains_mouse;
 }
 
 }  // namespace aura