Pass shelf instances, not root windows, for ash context menus.

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 <stddef.h>
 
 #include "ash/content/gpu_support_impl.h"
 #include "ash/session/session_state_delegate.h"
@@ skipping 124 matching lines @@
 ash::ShelfDelegate* ChromeShellDelegate::CreateShelfDelegate(
     ash::ShelfModel* model) {
   if (!shelf_delegate_) {
     shelf_delegate_ = ChromeLauncherController::CreateInstance(NULL, model);
     shelf_delegate_->Init();
   }
   return shelf_delegate_;
 }
 
 ui::MenuModel* ChromeShellDelegate::CreateContextMenu(
-    aura::Window* root_window,
+    ash::Shelf* shelf,
     const ash::ShelfItem* item) {
   DCHECK(shelf_delegate_);
   // Don't show context menu for exclusive app runtime mode.
   if (chrome::IsRunningInAppMode())
     return nullptr;
 
-  return new LauncherContextMenu(shelf_delegate_, item, root_window);
+  return new LauncherContextMenu(shelf_delegate_, item, shelf);
 }
 
 ash::GPUSupport* ChromeShellDelegate::CreateGPUSupport() {
   // Chrome uses real GPU support.
   return new ash::GPUSupportImpl;
 }
 
 base::string16 ChromeShellDelegate::GetProductName() const {
   return l10n_util::GetStringUTF16(IDS_PRODUCT_NAME);
 }
@@ skipping 44 matching lines @@
 
 void ChromeShellDelegate::AddVirtualKeyboardStateObserver(
     ash::VirtualKeyboardStateObserver* observer) {
   keyboard_state_observer_list_.AddObserver(observer);
 }
 
 void ChromeShellDelegate::RemoveVirtualKeyboardStateObserver(
     ash::VirtualKeyboardStateObserver* observer) {
   keyboard_state_observer_list_.RemoveObserver(observer);
 }