Fix Profile* lifetime issues in Chrome's AppListViewDelegate

chrome/browser/ui/app_list/app_list_service_views.cc

 // Copyright 2014 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/app_list/app_list_service_views.h"
 
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
 #include "chrome/browser/ui/app_list/scoped_keep_alive.h"
+#include "ui/app_list/views/app_list_view.h"
 
 AppListServiceViews::AppListServiceViews(
     scoped_ptr<AppListControllerDelegate> controller_delegate)
     : shower_(this),
       can_dismiss_(true),
       controller_delegate_(controller_delegate.Pass()) {
 }
 
 AppListServiceViews::~AppListServiceViews() {}
 
@@ skipping 37 matching lines @@
 }
 
 Profile* AppListServiceViews::GetCurrentAppListProfile() {
   return shower_.profile();
 }
 
 AppListControllerDelegate* AppListServiceViews::GetControllerDelegate() {
   return controller_delegate_.get();
 }
 
+void AppListServiceViews::DestroyAppList() {
+  if (!shower_.HasView())
+    return;
+
+  // Use CloseNow(). This can't be asynchronous because the profile will be
+  // deleted once this function returns.
+  shower_.app_list()->GetWidget()->CloseNow();
+  DCHECK(!shower_.HasView());
+}
+
 AppListControllerDelegate*
 AppListServiceViews::GetControllerDelegateForCreate() {
   return controller_delegate_.get();
 }