Removes worskpace 1 code. Will rename next.

ash/wm/always_on_top_controller.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 "ash/wm/always_on_top_controller.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/workspace_controller.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window.h"
 
 namespace ash {
 namespace internal {
 
 AlwaysOnTopController::AlwaysOnTopController()
-    : default_container_(NULL),
-      always_on_top_container_(NULL) {
+    : always_on_top_container_(NULL) {
 }
 
 AlwaysOnTopController::~AlwaysOnTopController() {
-  if (default_container_)
-    default_container_->RemoveObserver(this);
   if (always_on_top_container_)
     always_on_top_container_->RemoveObserver(this);
 }
 
-void AlwaysOnTopController::SetContainers(
-    aura::Window* default_container,
+void AlwaysOnTopController::SetAlwaysOnTopContainer(
     aura::Window* always_on_top_container) {
-  if (WorkspaceController::IsWorkspace2Enabled())
-    default_container = NULL;
-
-  // Both containers should have no children.
+  // Container should be empty.
   DCHECK(always_on_top_container->children().empty());
 
   // We are not handling any containers yet.
-  DCHECK(default_container_ == NULL && always_on_top_container_ == NULL);
-
-  default_container_ = default_container;
-  if (default_container_)
-    default_container_->AddObserver(this);
+  DCHECK(always_on_top_container_ == NULL);
 
   always_on_top_container_ = always_on_top_container;
   always_on_top_container_->AddObserver(this);
 }
 
 aura::Window* AlwaysOnTopController::GetContainer(aura::Window* window) const {
-  DCHECK(always_on_top_container_ &&
-         (default_container_ || WorkspaceController::IsWorkspace2Enabled()));
+  DCHECK(always_on_top_container_);
   if (window->GetProperty(aura::client::kAlwaysOnTopKey))
     return always_on_top_container_;
-  if (default_container_)
-    return default_container_;
   return GetRootWindowController(always_on_top_container_->GetRootWindow())->
       workspace_controller()->GetParentForNewWindow(window);
 }
 
 void AlwaysOnTopController::OnWindowAdded(aura::Window* child) {
   // Observe direct child of the containers.
-  if ((default_container_ && child->parent() == default_container_) ||
-      child->parent() == always_on_top_container_) {
+  if (child->parent() == always_on_top_container_)
     child->AddObserver(this);
-  }
 }
 
 void AlwaysOnTopController::OnWillRemoveWindow(aura::Window* child) {
   child->RemoveObserver(this);
 }
 
 void AlwaysOnTopController::OnWindowPropertyChanged(aura::Window* window,
                                                     const void* key,
                                                     intptr_t old) {
   if (key == aura::client::kAlwaysOnTopKey) {
     DCHECK(window->type() == aura::client::WINDOW_TYPE_NORMAL ||
            window->type() == aura::client::WINDOW_TYPE_POPUP);
     aura::Window* container = GetContainer(window);
     if (window->parent() != container)
       container->AddChild(window);
   }
 }
 
 void AlwaysOnTopController::OnWindowDestroyed(aura::Window* window) {
-  if (window == default_container_)
-    default_container_ = NULL;
   if (window == always_on_top_container_)
     always_on_top_container_ = NULL;
 }
 
 }  // namespace internal
 }  // namespace ash