Make launching apps from shelf more intuitive

chrome/browser/ui/ash/launcher/launcher_context_menu.cc

 // Copyright 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 "chrome/browser/ui/ash/launcher/launcher_context_menu.h"
 
 #include <string>
 
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_model.h"
+#include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/shell_port.h"
 #include "ash/strings/grit/ash_strings.h"
 #include "ash/wallpaper/wallpaper_delegate.h"
 #include "build/build_config.h"
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 #include "chrome/browser/fullscreen.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_utils.h"
@@ skipping 79 matching lines @@
       return CanUserModifyShelfAutoHideBehavior(controller_->profile());
     default:
       DCHECK(command_id < MENU_ITEM_COUNT);
       return true;
   }
 }
 
 void LauncherContextMenu::ExecuteCommand(int command_id, int event_flags) {
   switch (static_cast<MenuItem>(command_id)) {
     case MENU_OPEN_NEW:
-      controller_->Launch(item_.id, ui::EF_NONE);
+      controller_->LaunchApp(item_.id, ash::LAUNCH_FROM_UNKNOWN, ui::EF_NONE,
+                             display::Screen::GetScreen()
+                                 ->GetDisplayNearestWindow(
+                                     shelf_->shelf_widget()->GetNativeWindow())
+                                 .id());
       break;
     case MENU_CLOSE:
       if (item_.type == ash::TYPE_DIALOG) {
         ash::ShelfItemDelegate* item_delegate =
             controller_->shelf_model()->GetShelfItemDelegate(item_.id);
         DCHECK(item_delegate);
         item_delegate->Close();
       } else {
         // TODO(simonhong): Use ShelfItemDelegate::Close().
         controller_->Close(item_.id);
@@ skipping 76 matching lines @@
     case MENU_PIN:
     case MENU_AUTO_HIDE:
     case MENU_ALIGNMENT_MENU:
     case MENU_CHANGE_WALLPAPER:
       LauncherContextMenu::ExecuteCommand(command_id, event_flags);
       return true;
     default:
       return false;
   }
 }