Fix Profile* lifetime issues in Chrome's AppListViewDelegate

chrome/browser/ui/app_list/app_list_service_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_IMPL_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 35 matching lines @@
   virtual void SetProfilePath(const base::FilePath& profile_path) OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void AutoShowForProfile(Profile* requested_profile) OVERRIDE;
   virtual void EnableAppList(Profile* initial_profile,
                              AppListEnableSource enable_source) OVERRIDE;
   virtual void CreateShortcut() OVERRIDE;
 
  protected:
   AppListServiceImpl();
 
+  // Destroy the app list. Called when the profile that the app list is showing
+  // is being deleted.
+  virtual void DestroyAppList() = 0;
+
   void InvalidatePendingProfileLoads();
   ProfileLoader& profile_loader() { return *profile_loader_; }
   const ProfileLoader& profile_loader() const { return *profile_loader_; }
 
   // Perform startup checks shared between desktop implementations of the app
   // list. Currently this checks command line flags to enable or disable the app
   // list, and records UMA stats delayed from a previous Chrome process.
   void PerformStartupChecks(Profile* initial_profile);
 
  private:
@@ skipping 14 matching lines @@
   scoped_ptr<ProfileStore> profile_store_;
   base::WeakPtrFactory<AppListServiceImpl> weak_factory_;
   base::CommandLine command_line_;
   PrefService* local_state_;
   scoped_ptr<ProfileLoader> profile_loader_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListServiceImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_SERVICE_IMPL_H_