Fix cannot select and activate pinned v2app through launcher context menu

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

 // Copyright 2013 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/chrome_launcher_controller_impl.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 631 matching lines @@
     return std::vector<content::WebContents*>();
   LauncherItemController* controller = GetLauncherItemController(item->id);
   AppShortcutLauncherItemController* app_controller =
       static_cast<AppShortcutLauncherItemController*>(controller);
   return app_controller->GetRunningApplications();
 }
 
 void ChromeLauncherControllerImpl::ActivateShellApp(const std::string& app_id,
                                                     int window_index) {
   const ash::ShelfItem* item = GetItem(GetShelfIDForAppID(app_id));
-  if (item && item->type == ash::TYPE_APP) {
+  if (item &&
+      (item->type == ash::TYPE_APP || item->type == ash::TYPE_APP_SHORTCUT)) {
     LauncherItemController* controller = GetLauncherItemController(item->id);
     AppWindowLauncherItemController* app_window_controller =
-        static_cast<AppWindowLauncherItemController*>(controller);
+        controller->AsAppWindowLauncherItemController();
+    DCHECK(app_window_controller);
     app_window_controller->ActivateIndexedApp(window_index);
   }
 }
 
 bool ChromeLauncherControllerImpl::IsWebContentHandledByApplication(
     content::WebContents* web_contents,
     const std::string& app_id) {
   if ((web_contents_to_app_id_.find(web_contents) !=
        web_contents_to_app_id_.end()) &&
       (web_contents_to_app_id_[web_contents] == app_id))
@@ skipping 812 matching lines @@
     LauncherItemController* controller = GetLauncherItemController(item.id);
     if (!controller || controller->image_set_by_controller())
       continue;
     item.image = image;
     if (arc_deferred_launcher_)
       arc_deferred_launcher_->MaybeApplySpinningEffect(id, &item.image);
     model_->Set(index, item);
     // It's possible we're waiting on more than one item, so don't break.
   }
 }