Drag and drop between app list and launcher - First patch

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 625 matching lines @@
   CHECK(rwc) << "root=" << root
              << ", location:" << location_in_screen.ToString();
   if (rwc)
     rwc->ShowContextMenu(location_in_screen);
 }
 
 void Shell::ToggleAppList(aura::Window* window) {
   app_list_controller_->Toggle(window);
 }
 
+void Shell::SetDragAndDropHostOfCurrentAppList(
+    app_list::ApplicationDragAndDropHost* drag_and_drop_host) {
+  if (app_list_controller_.get())
+    app_list_controller_->SetDragAndDropHostOfCurrentAppList(
+        drag_and_drop_host);
+}
+
 bool Shell::GetAppListTargetVisibility() const {
   return app_list_controller_->GetTargetVisibility();
 }
 
 aura::Window* Shell::GetAppListWindow() {
   return app_list_controller_->GetWindow();
 }
 
 bool Shell::IsSystemModalWindowOpen() const {
   if (simulate_modal_window_open_for_testing_)
@@ skipping 291 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, aura::client::ActivationChangeObserver implementation:
 
 void Shell::OnWindowActivated(aura::Window* gained_active,
                               aura::Window* lost_active) {
   if (gained_active)
     active_root_window_ = gained_active->GetRootWindow();
 }
 
 }  // namespace ash