Drag and drop between app list and launcher - First patch

ash/wm/app_list_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/app_list_controller.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
@@ skipping 121 matching lines @@
 }
 
 bool AppListController::IsVisible() const {
   return view_ && view_->GetWidget()->IsVisible();
 }
 
 aura::Window* AppListController::GetWindow() {
   return is_visible_ && view_ ? view_->GetWidget()->GetNativeWindow() : NULL;
 }
 
+void AppListController::SetDragAndDropHostOfCurrentAppList(
+    app_list::ApplicationDragAndDropHost* drag_and_drop_host) {
+  if (view_ && is_visible_)
+    view_->SetDragAndDropHostOfCurrentAppList(drag_and_drop_host);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // AppListController, private:
 
 void AppListController::SetView(app_list::AppListView* view) {
   DCHECK(view_ == NULL);
   DCHECK(is_visible_);
 
   view_ = view;
   views::Widget* widget = view_->GetWidget();
   widget->AddObserver(this);
@@ skipping 188 matching lines @@
     should_snap_back_ = false;
     ui::ScopedLayerAnimationSettings animation(widget_animator);
     animation.SetTransitionDuration(base::TimeDelta::FromMilliseconds(
         app_list::kOverscrollPageTransitionDurationMs));
     widget->SetBounds(view_bounds_);
   }
 }
 
 }  // namespace internal
 }  // namespace ash