Revert 114095 - Move the concept of Activation to the Shell.

ui/aura/test/test_activation_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_activation_client.h"
-
-#include "ui/aura/window.h"
-
-namespace aura {
-namespace test {
-
-////////////////////////////////////////////////////////////////////////////////
-// TestActivationClient, public:
-
-TestActivationClient::TestActivationClient() : active_window_(NULL) {
-  ActivationClient::SetActivationClient(this);
-}
-
-TestActivationClient::~TestActivationClient() {
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// TestActivationClient, ActivationClient implementation:
-
-void TestActivationClient::ActivateWindow(Window* window) {
-  if (active_window_)
-    active_window_->RemoveObserver(this);
-  active_window_ = window;
-  active_window_->AddObserver(this);
-}
-
-void TestActivationClient::DeactivateWindow(Window* window) {
-  if (window == active_window_) {
-    if (active_window_)
-      active_window_->RemoveObserver(this);
-    active_window_ = NULL;
-  }
-}
-
-Window* TestActivationClient::GetActiveWindow() {
-  return active_window_;
-}
-
-bool TestActivationClient::CanFocusWindow(Window* window) const {
-  return true;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// TestActivationClient, WindowObserver implementation:
-
-void TestActivationClient::OnWindowDestroyed(Window* window) {
-  if (window == active_window_) {
-    window->RemoveObserver(this);
-    active_window_ = NULL;
-  }
-}
-
-}  // namespace test
-}  // namespace aura