[ash] Add TYPE_DIALOG and its item's LauncherContextMenu

chrome/browser/ui/ash/chrome_shell_delegate.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 "chrome/browser/ui/ash/chrome_shell_delegate.h"
 
 #include "apps/shell_window.h"
 #include "apps/shell_window_registry.h"
 #include "ash/host/root_window_host_factory.h"
 #include "ash/magnifier/magnifier_constants.h"
@@ skipping 109 matching lines @@
     shelf_delegate_ = ChromeLauncherController::CreateInstance(NULL, model);
     shelf_delegate_->Init();
   }
   return shelf_delegate_;
 }
 
 aura::client::UserActionClient* ChromeShellDelegate::CreateUserActionClient() {
   return new UserActionHandler;
 }
 
-ui::MenuModel* ChromeShellDelegate::CreateContextMenu(aura::Window* root) {
+ui::MenuModel* ChromeShellDelegate::CreateContextMenu(
+    aura::Window* root,
+    ash::ShelfItemDelegate* item_delegate,
+    ash::LauncherItem* item) {
   DCHECK(shelf_delegate_);
   // Don't show context menu for exclusive app runtime mode.
   if (chrome::IsRunningInAppMode())
     return NULL;
 
+  if (item_delegate && item)
+    return new LauncherContextMenu(shelf_delegate_, item_delegate, item, root);
+
   return new LauncherContextMenu(shelf_delegate_, root);
 }
 
 ash::RootWindowHostFactory* ChromeShellDelegate::CreateRootWindowHostFactory() {
   return ash::RootWindowHostFactory::Create();
 }
 
 base::string16 ChromeShellDelegate::GetProductName() const {
   return l10n_util::GetStringUTF16(IDS_PRODUCT_NAME);
 }
 
 keyboard::KeyboardControllerProxy*
     ChromeShellDelegate::CreateKeyboardControllerProxy() {
   return new AshKeyboardControllerProxy();
 }