Fixed app launcher crashing trying to load guest profile.

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/apps/scoped_keep_alive.h"
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
 #include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/views/app_list_main_view.h"
@@ skipping 12 matching lines @@
 void AppListServiceViews::OnViewBeingDestroyed() {
   can_dismiss_ = true;
   shower_.HandleViewBeingDestroyed();
 }
 
 void AppListServiceViews::Init(Profile* initial_profile) {
   PerformStartupChecks(initial_profile);
 }
 
 void AppListServiceViews::ShowForProfile(Profile* requested_profile) {
+  // App list profiles should not be off-the-record.
+  DCHECK(!requested_profile->IsOffTheRecord());

[Mike Lerman, 2015/04/22 13:27:39]

Also please check requested_profile->IsGuestSession()

[Matt Giuca, 2015/04/24 04:51:04]

Done.

+
   ShowForProfileInternal(requested_profile,
                          app_list::AppListModel::INVALID_STATE);
 }
 
 void AppListServiceViews::ShowForAppInstall(Profile* profile,
                                             const std::string& extension_id,
                                             bool start_discovery_tracking) {
   if (app_list::switches::IsExperimentalAppListEnabled())
     ShowForProfileInternal(profile, app_list::AppListModel::STATE_APPS);
 
@@ skipping 62 matching lines @@
   if (state != app_list::AppListModel::INVALID_STATE) {
     app_list::ContentsView* contents_view =
         shower_.app_list()->app_list_main_view()->contents_view();
     contents_view->SetActiveState(state,
                                  shower_.IsAppListVisible() /* animate */);
   }
 
   shower_.ShowForCurrentProfile();
   RecordAppListLaunch();
 }