[WIP] ash/extensions: Add experimental extension support for window-management in ash.

ash/shell.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/shell.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/accelerators/focus_manager_factory.h"
@@ skipping 42 matching lines @@
 #include "ash/wm/shelf_layout_manager.h"
 #include "ash/wm/stacking_controller.h"
 #include "ash/wm/status_area_layout_manager.h"
 #include "ash/wm/system_gesture_event_filter.h"
 #include "ash/wm/system_modal_container_layout_manager.h"
 #include "ash/wm/toplevel_window_event_filter.h"
 #include "ash/wm/user_activity_detector.h"
 #include "ash/wm/video_detector.h"
 #include "ash/wm/visibility_controller.h"
 #include "ash/wm/window_cycle_controller.h"
+#include "ash/wm/window_manager_extension.h"
 #include "ash/wm/window_modality_controller.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/window_properties.h"
 #include "ash/wm/workspace/workspace_event_filter.h"
 #include "ash/wm/workspace/workspace_layout_manager.h"
 #include "ash/wm/workspace_controller.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "grit/ui_resources.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 372 matching lines @@
   video_detector_.reset(new VideoDetector);
   window_cycle_controller_.reset(
       new WindowCycleController(activation_controller_.get()));
 
   tooltip_controller_.reset(new internal::TooltipController(
       drag_drop_controller_.get()));
   AddEnvEventFilter(tooltip_controller_.get());
 
   InitRootWindowController(root_window_controller);
 
+  {
+    // Note: This needs to happen after the root-window is initialized since it
+    // needs the activation-client.
+    internal::WindowManagerExtension* wm_extension =
+        new internal::WindowManagerExtension();
+    if (delegate_.get())
+      // TODO(sad): The delegate is leaking.
+      wm_extension->set_delegate(delegate_->CreateWindowManagerDelegate());
+  }
+
   // Initialize Primary RootWindow specific items.
   status_area_widget_ = new internal::StatusAreaWidget();
   status_area_widget_->CreateTrayViews(delegate_.get());
   status_area_widget_->Show();
 
   focus_cycler_.reset(new internal::FocusCycler());
   focus_cycler_->AddWidget(status_area_widget_);
 
   // This controller needs to be set before SetupManagedWindowMode.
   desktop_background_controller_.reset(new DesktopBackgroundController());
@@ skipping 314 matching lines @@
 }
 
 void Shell::ShowCursor(bool visible) {
   RootWindowList root_windows = GetAllRootWindows();
   for (RootWindowList::iterator iter = root_windows.begin();
        iter != root_windows.end(); ++iter)
     (*iter)->ShowCursor(visible);
 }
 
 }  // namespace ash