First pass at fixing guest browser cookies issue.

chrome/browser/autocomplete/shortcuts_backend_factory.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/autocomplete/shortcuts_backend_factory.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/autocomplete/shortcuts_backend.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 44 matching lines @@
     : RefcountedBrowserContextKeyedServiceFactory(
         "ShortcutsBackend",
         BrowserContextDependencyManager::GetInstance()) {
   DependsOn(HistoryServiceFactory::GetInstance());
 }
 
 ShortcutsBackendFactory::~ShortcutsBackendFactory() {}
 
 scoped_refptr<RefcountedKeyedService>
 ShortcutsBackendFactory::BuildServiceInstanceFor(
-    content::BrowserContext* profile) const {
+    content::BrowserContext* context) const {
+  Profile* profile = static_cast<Profile*>(context);
   scoped_refptr<ShortcutsBackend> backend(
-      new ShortcutsBackend(static_cast<Profile*>(profile), false));
+      new ShortcutsBackend(profile, profile->IsGuestSession()));
   if (backend->Init())
     return backend;
   return NULL;
 }
 
 bool ShortcutsBackendFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }