Move the concept of Activation to the Shell.

ui/aura/test/test_stacking_client.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/test/test_stacking_client.h"
 
 #include "ui/aura/root_window.h"
 
 namespace aura {
 namespace test {
 
 TestStackingClient::TestStackingClient()
     : default_container_(new Window(NULL)) {
   RootWindow::GetInstance()->SetStackingClient(this);
   default_container_->Init(ui::Layer::LAYER_HAS_NO_TEXTURE);
   default_container_->SetBounds(
       gfx::Rect(gfx::Point(), RootWindow::GetInstance()->GetHostSize()));
   RootWindow::GetInstance()->AddChild(default_container_.get());
   default_container_->Show();
 }
 
 TestStackingClient::~TestStackingClient() {
 }
 
 void TestStackingClient::AddChildToDefaultParent(Window* window) {
   default_container_->AddChild(window);
 }
 
-bool TestStackingClient::CanActivateWindow(Window* window) const {
-  return window->parent() == default_container_;
-}
-
-Window* TestStackingClient::GetTopmostWindowToActivate(Window* ignore) const {
-  for (aura::Window::Windows::const_reverse_iterator i =
-           default_container_->children().rbegin();
-       i != default_container_->children().rend();
-       ++i) {
-    if (*i != ignore && (*i)->CanActivate())
-      return *i;
-  }
-  return NULL;
-}
-
 }  // namespace test
 }  // namespace aura